參數(shù)資料
型號(hào): HD4074618TF
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 21/89頁(yè)
文件大小: 358K
代理商: HD4074618TF
HD404618 Series
21
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 shown in table 4.
Table 4 Interrupt Enable Flag
IE
Interrupt Enabled/Disabled
0
Disabled
1
Enabled
External Interrupts (
INT
0
,
INT
1
):
Specified by port mode register A (PMRA: $004).
The
INT
1
input can be used as a clock signal input to timer B. Timer B increments at each falling edge of
the
INT
1
input. When using
INT
1
as a timer B external event input, external interrupt mask IM1 must be
set to prevent the
INT
1
interrupt request from being accepted (see table 6).
To detect the edge of
INT
0
or
INT
1
, more than two instruction cycle times are required (2t
cyc
or 2t
subcyc
).
External Interrupt Request Flags (IF0: $000, Bit 2; IF1: $001, Bit 0):
Set at the falling edge of the
INT
0
and
INT
1
inputs as shown in table 5.
Table 5 External Interrupt Request Flags
IF0, IF1
Interrupt Request
0
No
1
Yes
External Interrupt Masks (IM0: $000, Bit 3; IM1: $001, Bit 1):
Prevent (mask) interrupt requests
caused by the corresponding external interrupt request flags, as shown in table 6.
Table 6 External Interrupt Masks
IM0, IM1
Interrupt Request
0
Enabled
1
Disabled (masked)
Timer A Interrupt Request Flag (IFTA: $001, Bit 2):
Set by overflow output from timer A as shown in
table 7.
Table 7 Timer A Interrupt Request Flag
IFTA
Interrupt Request
0
No
1
Yes
相關(guān)PDF資料
PDF描述
HD4046212R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404628R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD4074629 AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404629R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404638R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4074629 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a DTMF Generator Circuit
HD4074629F 制造商:Renesas Electronics Corporation 功能描述:
HD4074629FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller