XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 378

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

Input/Output Ports
Technical Data
378
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.
DDRH
Bit
0
1
PTH
Bit
X
X
Input/Output Ports
Table 22-8. Port H Pin Functions
Input, Hi-Z
I/O Pin
Output
Mode
Read/Write
DDRH[1:0]
DDRH[1:0]
Accesses
to DDRH
MC68HC908AZ60A — Rev 2.0
Table 22-8
PTH[1:0]
Read
Accesses to PTH
Pin
summarizes
MOTOROLA
PTH[1:0]
PTH[1:0]
Write
(1)