參數(shù)資料
型號: HD404849H
廠商: Hitachi,Ltd.
英文描述: SPLICE
中文描述: 4位單片機
文件頁數(shù): 23/125頁
文件大小: 471K
代理商: HD404849H
HD404849 Series
23
Interrupt Enable Flag (IE: $000, Bit 0):
Controls the entire interrupt process. It is reset by the interrupt
processing and set by the RTNI instruction, as listed in table 4.
Table 4 Interrupt Enable Flag (IE: $000, Bit 0)
IE
Interrupt Enabled/Disabled
0
Disabled
1
Enabled
External Interrupts (
INT
0
,
INT
1
, INT
2
, INT
3
):
There are four external interrupt signals.
External Interrupt Request Flags (IF0–IF3: $000, $001, $022):
IF0 and IF1 are set when the signals
input to
INT
0
and
INT
1
are falling, and IF2 and IF3 are set when the signals input to INT
2
and INT
3
are
rising or falling, as listed in table 5. The INT
2
and INT
3
interrupt edges are selected by the detection edge
select registers (ESR1, ESR2: $026, $027) as shown in figures 12 and 13.
Table 5 External Interrupt Request Flags (IF0–IF3: $000, $001, $022)
IF0–IF3
Interrupt Request
0
No
1
Yes
Bit
Initial value
Read/Write
Bit name
3
0
W
ESR13
2
0
W
ESR12
0
0
W
ESR10
1
0
W
ESR11
Detection edge selection register 1 (ESR1: $026)
ESR11
0
1
ESR10
0
1
0
1
INT
2
detection edge
No detection
Falling-edge detection
Rising-edge detection
Double-edge detection
ESR13
0
1
ESR12
0
1
0
1
INT
3
detection edge
No detection
Falling-edge detection
Rising-edge detection
Double-edge detection
Note: Both falling and rising edges are detected.
*
*
*
Figure 12 Detection Edge Selection Register 1 (ESR1)
相關(guān)PDF資料
PDF描述
HD404849TF TERMINAL
HD4074849 TERMINAL
HD4074849FS CONTACT
HD4074849H CONTACT
HD4074849TF TERMINAL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404849SERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD404849TF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer
HD404868 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Low-Voltage AS Microcomputers with On-Chip LCD Circuit
HD404878 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Low-Voltage AS Microcomputers with On-Chip LCD Circuit
HD4048812 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Low-Voltage AS Microcomputers with On-Chip LCD Circuit