MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 75

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Configuration Registers (CONFIG)
Technical Data
76
PCEH — Port C Enable High Nibble
PCEL — Port C Enable Low Nibble
LVISEL[1:0] — LVI Operating Mode Selection
Setting PCEH configures the PTC4/FP23–PTC7/FP26 pins for LCD
frontplane driver use. Reset clears this bit.
Setting PCEL configures the PTC0/FP19–PTC3/FP22 pins for LCD
frontplane driver use. Reset clears this bit.
LVISEL[1:0] selects the voltage operating mode of the LVI module.
(See
selected for the LVI should match the operating V
Electrical Specifications
the modes.
1 = PTC4/FP23–PTC7/FP26 pins configured as LCD frontplane
0 = PTC4/FP23–PTC7/FP26 pins configured as standard I/O pins:
1 = PTC0/FP19–PTC3/FP22 pins configured as LCD frontplane
0 = PTC0/FP19–PTC3/FP22 pins configured as standard I/O pins:
Section 21. Low-Voltage Inhibit
Configuration Registers (CONFIG)
driver pins: FP23–FP26
PTC4–PTC7
driver pins: FP19–FP22
PTC0–PTC3
LVISEL1
0
0
1
1
Table 5-1. LVI Trip Point Selection
LVISEL0
0
1
0
1
for the LVI voltage trip points for each of
Operating Mode
(LVI).) The voltage mode
Reserved (2.5V)
Reserved
MC68HC908LJ12
3V
5V
Freescale Semiconductor
DD
. See
Section 23.
—
Rev. 2.1