mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 325

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908AS60 — Rev. 1.0
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.
the operation of the port H pins.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
DDRH
Bit
For More Information On This Product,
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1
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Input/Output (I/O) Ports
PTH
Bit
X
X
Table 20-8. Port H Pin Functions
Input, Hi-Z
I/O Pin
Output
Mode
Read/Write
DDRH[1:0]
DDRH[1:0]
Accesses
to DDRH
Table 20-8
PTH[1:0]
Read
Accesses to PTH
Pin
Input/Output (I/O) Ports
summarizes
Technical Data
PTH[1:0]
PTH[1:0]
Write
Port H
(1)