h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 252

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 I/O Ports
Notes:
Notes: 1. When bit FGA20E is set to 1 in HICR0, bits HI12E and P81DDR should be cleared to 0.
Rev. 3.00 Mar 21, 2006 page 198 of 788
REJ09B0300-0300
LPC3E to
LPC1E
HI12E
SDE
P82DDR
Pin Function
FGA20E (LPC)
HI12E
FGA20E (XBS)
CS2E
P81DDR
Pin Function
P82/HIFSD/CLKRUN *
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.
P81/CS2/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.
1. When at least one of bits LPC3E to LPC1E is set to 1, bits HI12E and P82DDR should
2. Not supported by the H8S/2148B and H8S/2145B (5-V version).
2. The GA20 output pin and CS2 input pin can only be used in mode 2 or 3 (EXPE = 0).
The HIFSD input pin and CLKRUN I/O pin can only be used in mode 2 or 3 (EXPE = 0).
be cleared to 0.
input pin
input
P81
pin
P82
0
0
—
—
0
2
—
output
0
P81
pin
1
output pin
P82
1
input
P81
pin
0
input pin
0
All 0
P82
output
GA20 input pin *
0
P81
pin
0
0
1
0
output pin
input
pin *
CS2
—
1
P82
1
1
1
2
2
input
P81
pin
0
input pin
HIFSD
—
—
1
1
output
GA20
pin
1
CLKRUN
I/O pin *
Not all 0
0 *
0 *
output
—
GA20
0 *
0 *
pin
—
—
1
1
1
1
1
2