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HD64F2149YV 数据表(PDF) 135 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) 135 Page - Renesas Technology Corp

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Section 5 Interrupt Controller
Rev. 3.00 Jan 18, 2006 page 107 of 1044
REJ09B0280-0300
5.2.3
IRQ Enable Register (IER)
7
IRQ7E
0
R/W
6
IRQ6E
0
R/W
5
IRQ5E
0
R/W
4
IRQ4E
0
R/W
3
IRQ3E
0
R/W
0
IRQ0E
0
R/W
2
IRQ2E
0
R/W
1
IRQ1E
0
R/W
Bit
Initial value
Read/Write
IER is an 8-bit readable/writable register that controls enabling and disabling of interrupt requests
IRQ7 to IRQ0.
IER is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 0—IRQ7 to IRQ0 Enable (IRQ7E to IRQ0E): These bits select whether IRQ7 to
IRQ0 are enabled or disabled.
Bit n
IRQnE
Description
0
IRQn interrupt disabled
(Initial value)
1
IRQn interrupt enabled
(n = 7 to 0)
5.2.4
IRQ Sense Control Registers H and L (ISCRH, ISCRL)
• ISCRH
15
IRQ7SCB
0
R/W
14
IRQ7SCA
0
R/W
13
IRQ6SCB
0
R/W
12
IRQ6SCA
0
R/W
11
IRQ5SCB
0
R/W
8
IRQ4SCA
0
R/W
10
IRQ5SCA
0
R/W
9
IRQ4SCB
0
R/W
Bit
Initial value
Read/Write
• ISCRL
7
IRQ3SCB
0
R/W
6
IRQ3SCA
0
R/W
5
IRQ2SCB
0
R/W
4
IRQ2SCA
0
R/W
3
IRQ1SCB
0
R/W
0
IRQ0SCA
0
R/W
2
IRQ1SCA
0
R/W
1
IRQ0SCB
0
R/W
Bit
Initial value
Read/Write
ISCRH and ISCRL are 8-bit readable/writable registers that select rising edge, falling edge, or
both edge detection, or level sensing, for the input at pins
IRQ7 to IRQ0.
Each of the ISCR registers is initialized to H'00 by a reset and in hardware standby mode.



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