mc68hc912bl16 Freescale Semiconductor, Inc, mc68hc912bl16 Datasheet - Page 18

• Manufacturer Part Number: mc68hc912bl16
• Description: 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

18
Port Name
PAD[7:0]
Port AD
PA[7:0]
PB[7:0]
PE[7:0]
PP[3:0]
PS[7:4]
PS[1:0]
PT[5:0]
Port A
Port B
Port E
Port P
Port S
Port T
PT[7]
20–17, 29–26
57–54, 53-52
Numbers
37–30
49–42
61–64
7, 6–1
16–9
Pin
Table 6 MC68HC912BL16 Port Description Summary
DD Register (Address)
Freescale Semiconductor, Inc.
For More Information On This Product,
Data Direction
DDRS ($00D7)
DDRA ($0002)
DDRB ($0003)
DDRE ($0009)
DDRP ($0057)
DDRT ($00AF)
PE[7:2] In/Out
PE[1:0] In
In/Out
In/Out
In/Out
In/Out
In/Out
In
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Port A and port B pins are used for address and data in ex-
panded modes. The port data registers are not in the address
map during expanded and peripheral mode operation. When
in the map, port A and port B can be read or written any time.
DDRA and DDRB are not in the address map in expanded or
peripheral modes.
Analog-to-digital converter and general-purpose I/O.
Mode selection, bus control signals and interrupt service
request signals; or general-purpose I/O.
PP[3:0] are use with the pulse-width modulator when en-
abled.
Serial communications interface and serial peripheral in-
terface subsystems and general-purpose I/O.
General-purpose I/O when not enabled for input capture and
output compare in the timer and pulse accumulator sub-
system.
Description
MC68HC912BL16TS/D
MC68HC912BL16