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HD64F2149YV 数据表(PDF) 288 Page - Renesas Technology Corp

部件名 HD64F2149YV
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

HD64F2149YV 数据表(HTML) 288 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev. 3.00 Jan 18, 2006 page 260 of 1044
REJ09B0280-0300
8.12.3
Pin Functions
Port B pins also function as host interface (XBS) I/O pins (
CS3, CS4, HIRQ3, HIRQ4), host
interface (LPC) I/O pins (LSCI,
LSMI), wakeup event interrupt input pins (WUE7 to WUE0), and
data bus I/O pins (D7 to D0). The port B pin functions are shown in table 8.24.
Table 8.24
Port B Pin Functions
Pin
Selection Method and Pin Functions
PB7/D7/
WUE7
The pin function is switched as shown below according to the combination of
the operating mode, bit PB7DDR, and bit ABW in WSCR.
Operating
mode
Mode 1,
modes 2 and 3 (EXPE = 1)
Modes 2, 3
(EXPE = 0)
ABW
0
1
—
PB7DDR
—
0
101
Pin function
D7
I/O pin
PB7
input pin
PB7
output pin
PB7
input pin
PB7
output pin
WUE7 input pin
Except when used as a data bus pin, this pin can always be used as the
WUE7 input pin.
PB6/D6/
WUE6
The pin function is switched as shown below according to the combination of
the operating mode, bit PB6DDR, and bit ABW in WSCR.
Operating
mode
Mode 1,
modes 2 and 3 (EXPE = 1)
Modes 2, 3
(EXPE = 0)
ABW
0
1
—
PB6DDR
—
0
101
Pin function
D6
I/O pin
PB6
input pin
PB6
output pin
PB6
input pin
PB6
output pin
WUE6 input pin
Except when used as a data bus pin, this pin can always be used as the
WUE6 input pin.



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