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| HD64F2145 Datasheet, PDF (225/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer | |||
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⢠P82/HIFSD/&/.581*2
The pin function is switched as shown below according to the combination of the HI12E and
SDE bits in SYSCR2, the LPC3E to LPC1E bits in HICR0, and the P82DDR bit.
LPC3E to
LPC1E
All 0
Not all 0
HI12E
0
1
0*1
SDE
â
0
1
â
P82DDR
0
1
0
1
â
0*1
Pin Function
P82
input pin
P82
output pin
P82
input pin
P82
output pin
HIFSD &/.581 I/O
input pin
pin*2
Notes: The HIFSD input pin and &/.581 I/O pin can only be used in mode 2 or 3 (EXPE = 0).
1. When at least one of bits LPC3E to LPC1E is set to 1, bits HI12E and P82DDR should
be cleared to 0.
2. Not supported by the H8S/2148B.
⢠P81/&65/GA20
The pin function is switched as shown below according to the combination of the HI12E bit in
SYSCR2, the CS2E bit in SYSCR, the FGA20E bit in HICR, the FGA20E bit in HICR0, and
the P81DDR bit.
FGA20E
0
1
(LPC)
HI12E
0
1
0*1
FGA20E
â
0
(XBS)
1
â
CS2E
â
0
1
â
â
P81DDR
0
1
0
1
â
0
1
0*1
Pin Function P81 input P81 output P81 input P81 &65 input P81 input GA20 GA20
pin
pin
pin output pin pin*2
pin output pin output pin
GA20 input pin*2
Notes: 1. When bit FGA20E is set to 1 in HICR0, bits HI12E and P81DDR should be cleared to 0.
2. The GA20 output pin and &65 input pin can only be used in mode 2 or 3 (EXPE = 0).
Rev. 2.0, 08/02, page 185 of 788
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