s908az32ag2cfue Freescale Semiconductor, Inc, s908az32ag2cfue Datasheet - Page 261

• Manufacturer Part Number: s908az32ag2cfue
• Description: M68hc08 Microcontrollers 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

When bit DDRHx is a logic 1, reading address $000B reads the PTHx data latch. When bit DDRHx is a
logic 0, reading address $000B reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
Freescale Semiconductor
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
DDRH
Bit
0
1
PTH
Bit
X
X
Table 23-8. Port H Pin Functions
MC68HC908AZ32A Data Sheet, Rev. 2
Input, Hi-Z
I/O Pin
Output
Mode
Table 23-8
Accesses to
Read/Write
DDRH[1:0]
DDRH[1:0]
DDRH
summarizes the operation of the port H pins.
PTH[1:0]
Read
Pin
Accesses to PTH
PTH[1:0]
PTH[1:0]
Write
(1)
Port H
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