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Reference

Register reference

All 17 registers used by the seven missions, with addresses and bit tables.

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Register map
OSCCON — 0x20
TRISA — 0x21
PORTA — 0x22
TRISB — 0x23
PORTB — 0x24
ADCON0 — 0x25
ADCON1 — 0x26
T0CON — 0x27
T1CON — 0x28
EECON0 — 0x29
EECON1 — 0x2A
TXSTA — 0x2B
RCSTA — 0x2C
SSPCON0 — 0x2D
SSPCON1 — 0x2E
I2CCON0 — 0x2F
I2CCON1 — 0x30

Register map

Address	Register	Used in
0x20	OSCCON	All levels
0x21	TRISA	Level 1
0x22	PORTA	Level 1
0x23	TRISB	Level 1
0x24	PORTB	Level 1
0x25	ADCON0	Level 2
0x26	ADCON1	Level 2
0x27	T0CON	Level 3
0x28	T1CON	Level 3
0x29	EECON0	Level 4
0x2A	EECON1	Level 4
0x2B	TXSTA	Level 5
0x2C	RCSTA	Level 5
0x2D	SSPCON0	Level 6
0x2E	SSPCON1	Level 6
0x2F	I2CCON0	Level 7
0x30	I2CCON1	Level 7

Note

OSCCON is required by every level and must be 0x05. Bits marked “not used” are not needed for the win value and should be left at 0.

17 of 17 registers

OSCCON 0x20

Used in level 1 Used in level 2 Used in level 3 Used in level 4 Used in level 5 Used in level 6 Used in level 7

OSCCON0x20
Bit(s)	Field	When 1 / value meaning	When 0
7:3	—	Not used (leave 0)
2:1	IRCF1:IRCF0	`00` = 1 MHz `01` = 2 MHz `10` = 4 MHz `11` = 8 MHz
0	SCS0	1 = Internal oscillator on	0 = Internal oscillator not enabled

TRISA 0x21

Used in level 1

TRISA0x21
Bit(s)	Field	When 1 / value meaning	When 0
7:0	RA7…RA0	1 = RAn is an input	0 = RAn is an output

PORTA 0x22

Used in level 1

PORTA0x22
Bit(s)	Field	When 1 / value meaning	When 0
7:0	RA7…RA0	1 = RAn drives 5 V (needs TRISA bit n = 0)	0 = RAn does not drive 5 V (an input pin reads the outside level)

TRISB 0x23

Used in level 1

TRISB0x23
Bit(s)	Field	When 1 / value meaning	When 0
7:0	RB7…RB0	1 = RBn is an input	0 = RBn is an output

PORTB 0x24

Used in level 1

PORTB0x24
Bit(s)	Field	When 1 / value meaning	When 0
7:0	RB7…RB0	1 = RBn drives 5 V (needs TRISB bit n = 0)	0 = RBn does not drive 5 V (an input pin reads the outside level)

ADCON0 0x25

Used in level 2

ADCON00x25
Bit(s)	Field	When 1 / value meaning	When 0
7:6	ADCS1:ADCS0	`00` = Conversion clock = Fosc/4 `01` = Conversion clock = Fosc/16 `10` = Conversion clock = Fosc/32 `11` = Conversion clock = Fosc/64
5	—	Not used (leave 0)
4:2	CHS2:CHS0	`000` = Channel AN0 `001` = Channel AN1 `010` = Channel AN2 `011` = Channel AN3 `100` = Channel AN4 `101` = Channel AN5 `110` = Channel AN6 `111` = Channel AN7
1	GO/DONE	Conversion GO/DONE bit: not part of the win value (leave 0)
0	ADON	1 = Converter on	0 = Converter off

ADCON1 0x26

Used in level 2

ADCON10x26
Bit(s)	Field	When 1 / value meaning	When 0
7:6	ADCS1:ADCS0	`00` = Conversion clock = Fosc/4 `01` = Conversion clock = Fosc/16 `10` = Conversion clock = Fosc/32 `11` = Conversion clock = Fosc/64
5	—	Not used (leave 0)
4:2	CHS2:CHS0	`000` = Channel AN0 `001` = Channel AN1 `010` = Channel AN2 `011` = Channel AN3 `100` = Channel AN4 `101` = Channel AN5 `110` = Channel AN6 `111` = Channel AN7
1	GO/DONE	Conversion GO/DONE bit: not part of the win value (leave 0)
0	ADON	1 = Converter on	0 = Converter off

T0CON 0x27

Used in level 3

T0CON0x27
Bit(s)	Field	When 1 / value meaning	When 0
7:6	—	Not used (leave 0)
5:4	T0PS1:T0PS0	`00` = Prescaler 1:16 `01` = Prescaler 1:8 `10` = Prescaler 1:4 `11` = Prescaler 1:2
3	PSA	1 = Prescaler NOT assigned (timer runs at the full clock)	0 = Prescaler ASSIGNED (inverted: 0 = assigned)
2	T0SE	Selects the increment edge: not part of the win value (leave 0)
1	T08BIT	1 = 8-bit mode	0 = 16-bit mode
0	TMR0ON	1 = Timer on	0 = Timer off

T1CON 0x28

Used in level 3

T1CON0x28
Bit(s)	Field	When 1 / value meaning	When 0
7:6	—	Not used (leave 0)
5:4	T1PS1:T1PS0	`00` = Prescaler 1:16 `01` = Prescaler 1:8 `10` = Prescaler 1:4 `11` = Prescaler 1:2
3	PSA	1 = Prescaler NOT assigned (timer runs at the full clock)	0 = Prescaler ASSIGNED (inverted: 0 = assigned)
2	T1SE	Selects the increment edge: not part of the win value (leave 0)
1	T18BIT	1 = 8-bit mode	0 = 16-bit mode
0	TMR1ON	1 = Timer on	0 = Timer off

EECON0 0x29

Used in level 4

EECON00x29
Bit(s)	Field	When 1 / value meaning	When 0
7:3	—	Not used (leave 0)
2	WR	1 = Initiate a write	0 = No write initiated
1	RD	1 = Initiate a read	0 = No read initiated
0	EEPGD	1 = Access flash program memory	0 = Access EEPROM data memory

EECON1 0x2A

Used in level 4

EECON10x2A
Bit(s)	Field	When 1 / value meaning	When 0
7:3	—	Not used (leave 0)
2	WR	1 = Initiate a write	0 = No write initiated
1	RD	1 = Initiate a read	0 = No read initiated
0	EEPGD	1 = Access flash program memory	0 = Access EEPROM data memory

TXSTA 0x2B

Used in level 5

TXSTA0x2B
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	TX9	9-bit transmit bit: not part of the win value (leave 0)
3	BRGH	BRGH bit: not part of the win value (leave 0)
2	SYNC	SYNC bit: not part of the win value (leave 0)
1	TXEN	1 = Transmitter enabled	0 = Transmitter disabled
0	SPEN	1 = Serial port enabled	0 = Serial port disabled

RCSTA 0x2C

Used in level 5

RCSTA0x2C
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	RX9	9-bit receive bit: not part of the win value (leave 0)
3	BRGH	BRGH bit: not part of the win value (leave 0)
2	SYNC	SYNC bit: not part of the win value (leave 0)
1	CREN	1 = Receiver enabled	0 = Receiver disabled
0	SPEN	1 = Serial port enabled	0 = Serial port disabled

SSPCON0 0x2D

Used in level 6

SSPCON00x2D
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	CKE	Transmit edge: not part of the win value (leave 0)
3	CKP	Clock idle level: not part of the win value (leave 0)
2:1	SSPM1:SSPM0	`00` = SPI Slave, Fosc/4 `01` = SPI Slave, Fosc/16 `10` = SPI Master, Fosc/4 `11` = SPI Master, Fosc/16
0	SPEN	1 = Serial port enabled	0 = Serial port disabled

SSPCON1 0x2E

Used in level 6

SSPCON10x2E
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	CKE	Transmit edge: not part of the win value (leave 0)
3	CKP	Clock idle level: not part of the win value (leave 0)
2:1	SSPM1:SSPM0	`00` = SPI Slave, Fosc/4 `01` = SPI Slave, Fosc/16 `10` = SPI Master, Fosc/4 `11` = SPI Master, Fosc/16
0	SPEN	1 = Serial port enabled	0 = Serial port disabled

I2CCON0 0x2F

Used in level 7

I2CCON00x2F
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	CKE	Transmit edge: not part of the win value (leave 0)
3	CKP	Clock idle level: not part of the win value (leave 0)
2:1	SSPM1:SSPM0	`00` = I²C Slave, 10-bit, Fosc/4 `01` = I²C Slave, 7-bit, Fosc/16 `10` = I²C Master, 10-bit, Fosc/4 `11` = I²C Master, 7-bit, Fosc/16
0	SPEN	1 = Serial port enabled	0 = Serial port disabled

I2CCON1 0x30

Used in level 7

I2CCON10x30
Bit(s)	Field	When 1 / value meaning	When 0
7:5	—	Not used (leave 0)
4	CKE	Transmit edge: not part of the win value (leave 0)
3	CKP	Clock idle level: not part of the win value (leave 0)
2:1	SSPM1:SSPM0	`00` = I²C Slave, 10-bit, Fosc/4 `01` = I²C Slave, 7-bit, Fosc/16 `10` = I²C Master, 10-bit, Fosc/4 `11` = I²C Master, 7-bit, Fosc/16
0	SPEN	1 = Serial port enabled	0 = Serial port disabled