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HD64F2149YV bảng dữ liệu(PDF) 270 Page - Renesas Technology Corp

tên linh kiện HD64F2149YV
Giải thích chi tiết về linh kiện  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
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nhà sản xuất  RENESAS [Renesas Technology Corp]
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HD64F2149YV bảng dữ liệu(HTML) 270 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev. 3.00 Jan 18, 2006 page 242 of 1044
REJ09B0280-0300
Pin
Selection Method and Pin Functions
P81/GA20/
CS2
The pin function is switched as shown below according to the combination of
bit HI12E in SYSCR2, bit CS2E in SYSCR, bit FGA20E in HICR, bit FGA20E
in HICR0, and bit P81DDR.
FGA20E
(LPC)
01
HI12E
0
1
—*
FGA20E
(XBS)
—
01
—
CS2E
—
01
——
P81DDR
0101
—
01
—
Pin function
P81
input
pin
P81
output
pin
P81
input
pin
P81
output
pin
CS2
input
pin
P81
input
pin
GA20
output
pin
GA20
output
pin
GA20 input pin
Note:
*
When bit FGA20E is set to 1 in HICR0, bits HI12E and P81DDR
should be cleared to 0.
The GA20 output pin and
CS2 input pin can only be used in mode 2 or 3
(EXPE = 0).
P80/HA0/
PME
The pin function is switched as shown below according to the combination of
bit HI12E in SYSCR2, bit PMEE in HICR0, and bit P80DDR.
PMEE
0
1
HI12E
0
1
—*
P80DDR
0
1
——*
Pin function
P80 input pin
P80 output pin
HA0 input pin
PME output pin
PME input pin
Note:
*
When bit PMEE is set to 1 in HICR0, bits HI12E and P80DDR
should be cleared to 0.
The HA0 input pin can only be used in mode 2 or 3 (EXPE = 0).



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