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参数资料
型号： MSC1201Y3RHHRG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC36
封装： GREEN, PLASTIC, QFN-36
文件页数： 42/93页
文件大小： 1093K
代理商： MSC1201Y3RHHRG4
MSC1200
MSC1201
MSC1202
SBAS317E APRIL 2004 REVISED MAY 2006
www.ti.com
47
Stack Pointer (SP)
7
6
5
4
3
2
1
0
Reset Value
SFR 81h
SP.7
SP.6
SP.5
SP.4
SP.3
SP.2
SP.1
SP.0
07h
SP.70
Stack Pointer. The stack pointer identifies the location where the stack will begin. The stack pointer is incremented before
bits 70
every PUSH or CALL operation and decremented after each POP or RET/RETI. This register defaults to 07h after reset.
Data Pointer Low 0 (DPL0)
7
6
5
4
3
2
1
0
Reset Value
SFR 82h
DPL0.7
DPL0.6
DPL0.5
DPL0.4
DPL0.3
DPL0.2
DPL0.1
DPL0.0
00h
DPL0.70
Data Pointer Low 0. This register is the low byte of the standard 8051 16-bit data pointer. DPL0 and DPH0 are used
bits 70
to point to non-scratchpad data RAM. The current data pointer is selected by DPS (SFR 86h).
Data Pointer High 0 (DPH0)
7
6
5
4
3
2
1
0
Reset Value
SFR 83h
DPH0.7
DPH0.6
DPH0.5
DPH0.4
DPH0.3
DPH0.2
DPH0.1
DPH0.0
00h
DPH0.70
Data Pointer High 0. This register is the high byte of the standard 8051 16-bit data pointer. DPL0 and DPH0 are used
bits 70
to point to non-scratchpad data RAM. The current data pointer is selected by DPS (SFR 86h).
Data Pointer Low 1 (DPL1)
7
6
5
4
3
2
1
0
Reset Value
SFR 84h
DPL1.7
DPL1.6
DPL1.5
DPL1.4
DPL1.3
DPL1.2
DPL1.1
DPL1.0
00h
DPL1.70
Data Pointer Low 1. This register is the low byte of the auxiliary 16-bit data pointer. When the SEL bit (DPS.0)
bits 70
(SFR 86h) is set, DPL1 and DPH1 are used in place of DPL0 and DPH0 during DPTR operations.
Data Pointer High 1 (DPH1)
7
6
5
4
3
2
1
0
Reset Value
SFR 85h
DPH1.7
DPH1.6
DPH1.5
DPH1.4
DPH1.3
DPH1.2
DPH1.1
DPH1.0
00h
DPH1.70
Data Pointer High. This register is the high byte of the auxiliary 16-bit data pointer. When the SEL bit (DPS.0)
bits 70
(SFR 86h) is set, DPL1 and DPH1 are used in place of DPL0 and DPH0 during DPTR operations.
Data Pointer Select (DPS)
7
6
5
4
3
2
1
0
Reset Value
SFR 86h
0
SEL
00h
SEL
Data Pointer Select. This bit selects the active data pointer.
bit 0
0: Instructions that use the DPTR will use DPL0 and DPH0.
1: Instructions that use the DPTR will use DPL1 and DPH1.
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相关代理商/技术参数
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