CB400

Pin description

Pin	Name	I/O	Description
SOUT	1	OUT	DOWNLOAD SERIAL OUTPUT
SIN	2	IN	DOWNLOAD SERIAL INPUT
ATN	3	IN	DOWNLOAD SERIAL RESET (DTR)
GND	4, 22, 64	POWER IN	GROUND
VCC	21, 44	POWER IN	Input Power 5.1V ~ 5.5V
AVREF	63	IN	ADC Reference voltage
VBB	24	POWER IN	The CB400 does not utilize this pin
RES	23	IN	Reset (Low active)
TTLTXE	61	OUT	TTL TX (TTL side of the built-in MAX232)	See Using RS-232 on the CB400/405/405RT
TTLRXE	62	IN	TTL RX (TTL side of the built-in MAX232)
TXE	41	OUT	RS-232 TX (RS-232 side of the built-in MAX232)
RXE	42	IN	RS-232 RX (RS-232 side of the built-in MAX232)

I/O Block 0

Name	Pin	I/O	Description
P0	5	I/O	SPI SS
P1	6	Input	SPI SCK
P2	7	Input	SPI MOSI
P3	8	Input	SPI MISO
P4	9	I/O
P5	10	I/O	PWM CHANNEL 0
P6	11	I/O	PWM CHANNEL 1
P7	12	I/O	PWM CHANNEL 2

I/O Block 1

I/O Block 2

I/O Block 3

I/O Block 4

I/O Block 5

I/O Block 6

I/O Block 7

I/O Block 8

Name	Pin	I/O
P64	85	I/O
P65	86	I/O
P66	87	I/O
P67	88	I/O
P68	89	I/O
P69	90	I/O
P70	91	I/O
P71	92	I/O

I/O Block 9

Name	Pin	I/O
P72	99	I/O
P73	100	I/O
P74	101	I/O
P75	102	I/O
P76	103	I/O
P77	104	I/O
P78	105	I/O
P79	106	I/O

Name	Pin	I/O
P80	93	I/O
P81	94	I/O
P82	107	I/O

Name	Pin	I/O
P64	85	I/O
P65	86	I/O
P66	87	I/O
P67	88	I/O
P68	89	I/O
P69	90	I/O
P70	91	I/O
P71	92	I/O

Name	Pin	I/O
P72	99	I/O
P73	100	I/O
P74	101	I/O
P75	102	I/O
P76	103	I/O
P77	104	I/O
P78	105	I/O
P79	106	I/O

Name	Pin	I/O
P64	85	I/O
P65	86	I/O
P66	87	I/O
P67	88	I/O
P68	89	I/O
P69	90	I/O
P70	91	I/O
P71	92	I/O

Name	Pin	I/O
P72	99	I/O
P73	100	I/O
P74	101	I/O
P75	102	I/O
P76	103	I/O
P77	104	I/O
P78	105	I/O
P79	106	I/O

Name	Pin	I/O
P64	85	I/O
P65	86	I/O
P66	87	I/O
P67	88	I/O
P68	89	I/O
P69	90	I/O
P70	91	I/O
P71	92	I/O

Name	Pin	I/O
P72	99	I/O
P73	100	I/O
P74	101	I/O
P75	102	I/O
P76	103	I/O
P77	104	I/O
P78	105	I/O
P79	106	I/O