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 0 1 0 0 a a a 0 A 0 0 0 1 0 0 1 0 A 1 0 1 0 1 0 1 0 A 0 1 0 1 0 1 0 1 A 1 0 1 0 1 0 1 0 P
MCP23X17
Opcode
Register
Addr = 12h
Data @
12h
Data @
13h
Data @
14h
INTCONB
IOCON
IOCON
GPPUA
GPPUB
INTFA
INTFB
INTCAPA
INTCAPB
GPIOA
GPIOB
OLATA
OLATB
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
? 2006 Microchip Technology Inc.
DS01043A-page 7
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