AN1043
FIGURE 8:
16-BIT MODE: ADDRESS POINTER ENABLED (MCP23017 EXAMPLE)
When the address pointer is ENABLED and the device is in
16-bit mode, the address pointer will increment after every
byte is clocked. The address pointer will roll over to 00h
after exceeding 15h.
S 0100aaa0A 00010010A 10101010A 01010101A 10101010P
MCP23X17
Opcode
Register
Addr = 12h
Data @
12h
Data @
13h
Data @
14h
INTCONB
09
IOCON
0A
IOCON
0B
GPPUA
0C
GPPUB
0D
INTFA
0E
INTFB
0F
INTCAPA
10
INTCAPB
11
GPIOA
12
GPIOB
13
OLATA
14
OLATB
15
© 2006 Microchip Technology Inc.
DS01043A-page 7