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參數(shù)資料
| 型號(hào)： | UPD17246MC-xxx-5A4 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 17/102頁 |
| 文件大小： | 461K |
| 代理商： | UPD17246MC-XXX-5A4 |
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17
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
Contents of Program Counter (PC)
Note
SGR
1
0
0
b
12
0
0
1
1
0
0
0
b
11
0
1
0
1
0
0
0
b
10
0
b
9
0
b
8
0
b
7
0
0
b
6
0
0
b
5
0
0
b
4
0
0
b
3
0
b
2
0
b
1
0
b
0
0
Program Counter
Instruction
BR addr
CALL addr
SYSCAL entry
BR @AR
CALL @AR
MOVT DBF, @AR
RET
RETSK
RETI
Other instructions
(including skip instruction)
On acknowledging interrupt
Watchdog timer reset,
RESET pin,
reset by stack pointer
Page 0
Page 1
Page 2
Page 3
entry
L
entry
H
Operand of instruction (addr)
Operand of instruction (addr)
Contents of address register
Re-
tained
Re-
tained
Contents (return address) of address stack register (ASR)
specified by stack pointer (SP)
Vector address of each interrupt
Increment
Re-
tained
Figure 2-3. Value of Program Counter on Execution of Each Instruction
Note
μ
PD17240:
μ
PD17241:
μ
PD17242, 17243:
μ
PD17244, 17245, 17246: b
0
to b
12
, SGR
b
0
to b
10
b
0
to b
11
b
0
to b
12
Remark
entry
H
: Higher 3 bits of entry
entry
L
: Lower 4 bits of entry
Table 2-2. Interrupt Vector Address
Priority
Internal/External
Interrupt Source
Vector Address
1
Internal
8-bit timer
0004H
2
External
Rising and falling edges of INT pin
0003H
3
Internal
Basic interval timer
0002H
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