h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 292
h8s-2138
Manufacturer Part Number
h8s-2138
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2138.pdf
(1061 pages)
- Current page: 292 of 1061
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Section 8 I/O Ports
Pin
P94/WR/IOW
P93/RD/IOR
P92/IRQ0
P91/IRQ1
Rev. 4.00 Jun 06, 2006 page 238 of 1004
REJ09B0301-0400
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
operating mode, bit HI12E in SYSCR2, and bit P94DDR.
The pin function is switched as shown below according to the combination of
operating mode, bit HI12E in SYSCR2, and bit P93DDR.
When bit IRQ0E in IER is set to 1, this pin is used as the IRQ0 input pin.
When bit IRQ1E in IER is set to 1, this pin is used as the IRQ1 input pin.
Operating
mode
HI12E
P94DDR
Pin function
Operating
mode
HI12E
P93DDR
Pin function
P92DDR
Pin function
P91DDR
Pin function
Modes 1, 2, 3
Modes 1, 2, 3
RD output pin
(EXPE = 1)
(EXPE = 1)
output pin
WR
—
—
—
—
P92 input pin
P91 input pin
0
0
P93 input pin
input pin
P94
0
0
IRQ0 input pin
IRQ1 input pin
Modes 2, 3 (EXPE = 0)
Modes 2, 3 (EXPE = 0)
0
0
P93 output pin
output pin
P94
1
1
P92 output pin
P91 output pin
1
1
IOR input pin
input pin
IOW
—
—
1
1
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