XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 372

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

Input/Output Ports
Technical Data
372
When bit DDRFx is a logic 1, reading address $0009 reads the PTFx
data latch. When bit DDRFx is a logic 0, reading address $0009 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 F pins.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
DDRF
Bit
0
1
READ DDRF ($000D)
WRITE DDRF ($000D)
WRITE PTF ($0009)
READ PTF ($0009)
PTF
Bit
X
X
Input/Output Ports
Table 22-6. Port F Pin Functions
Figure 22-19. Port F I/O Circuit
RESET
Input, Hi-Z
I/O Pin
Output
Mode
DDRFx
PTFx
Read/Write
DDRF[6:0]
DDRF[6:0]
Accesses
to DDRF
MC68HC908AZ60A — Rev 2.0
Table 22-6
PTF[6:0]
Read
Accesses to PTF
Pin
summarizes
MOTOROLA
PTF[6:0]
PTF[6:0]
Write
PTFx
(1)