s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 332

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
17.8.3 Port F Input Pullup Enable Register (PTFPUE)
17.9 Port G
17.9.1 Port G Data Register (PTG)
Technical Data
332
Address:
The port F input pullup enable register (PTFPUE) controls the input
pullup device for each of the eight port F pins. Each bit is individually
configurable and requires that the data direction register, DDRF, bit be
configured as an input. Each pullup is automatically and dynamically
disabled when a port bit’s DDRF is configured for output mode.
PTFPUE[7:0] — Port F Input Pullup Enable Bits
Port G is a 3-bit special-function port that shares all three of its pins with
the keyboard interrupt (KBI) module.
The port G data register (PTG) contains a data latch for each of the three
port G pins.
Reset:
Read:
Write:
These writable bits are software programmable to enable pullup
devices on an input port pin.
Figure 17-21. Port F Input Pullup Enable Register (PTFPUE)
1 = Corresponding port F pin configured to have internal pullup
0 = Corresponding port F pin internal pullup disconnected
PTFPUE7 PTFPUE6 PTFPUE5 PTFPUE4 PTFPUE3 PTFPUE2 PTFPUE1 PTFPUE0
$003E
Bit 7
0
Input/Output (I/O) Ports
6
0
5
0
4
0
3
0
MC68HC908AB32
Freescale Semiconductor
2
0
1
0
—
Rev. 1.1
Bit 0
0