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参数资料
| 型号： | uPSD3212C |
| 厂商： | 意法半导体 |
| 英文描述： | Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件) |
| 中文描述： | 闪存可编程系统设备与8032微控制器内核和16Kbit的SRAM（带8032微控制器内核和16Kbit SRAM的的闪存可编程系统器件） |
| 文件页数： | 17/151页 |
| 文件大小： | 1194K |
| 代理商： | UPSD3212C |
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uPSD3212C, uPSD3212CV
Registers
The 8032 has several registers; these are the Pro-
gram Counter (PC), Accumulator (A), B Register
(B), the Stack Pointer (SP), the Program Status
Word (PSW), General purpose registers (R0 to
R7), and DPTR (Data Pointer register).
Accumulator.
The Accumulator is the 8-bit gen-
eral purpose register, used for data operation such
as transfer, temporary saving, and conditional
tests. The Accumulator can be used as a 16-bit
register with B Register as shown in Figure 5.
B Register.
The B Register is the 8-bit general
purpose register, used for an arithmetic operation
such as multiply, division with the Accumulator
(see Figure 6).
Stack Pointer.
The Stack Pointer Register is 8
bits wide. It is incremented before data is stored
during PUSH and CALL executions. While the
stack may reside anywhere in on-chip RAM, the
Stack Pointer is initialized to 07h after reset. This
causes the stack to begin at location 08h (see Fig-
ure 7).
Program Counter.
The Program Counter is a 16-
bit wide which consists of two 8-bit registers, PCH
and PCL. This counter indicates the address of the
next instruction to be executed. In RESET state,
the program counter has reset routine address
(PCH:00h, PCL:00h).
Program Status Word.
The
Word (PSW) contains several bits that reflect the
current state of the CPU and select Internal RAM
(00h to 1Fh: Bank0 to Bank3). The PSW is de-
scribed in Figure 8, page 18. It contains the Carry
Flag, the Auxiliary Carry Flag, the Half Carry (for
BCD operation), the general purpose flag, the
Register Bank Select Flags, the Overflow Flag,
and Parity Flag.
[Carry Flag, CY]. This flag stores any carry or not
borrow from the ALU of CPU after an arithmetic
operation and is also changed by the Shift Instruc-
tion or Rotate Instruction.
[Auxiliary Carry Flag, AC]. After operation, this is
set when there is a carry from Bit 3 of ALU or there
is no borrow from Bit 4 of ALU.
[Register Bank Select Flags, RS0, RS1]. This flags
select
one
of
four
08~0Fh:bank1, 10~17h:bank2, 17~1Fh:bank3) in
Internal RAM.
[Overflow Flag, OV]. This flag is set to '1' when an
overflow occurs as the result of an arithmetic oper-
ation involving signs. An overflow occurs when the
result of an addition or subtraction exceeds +127
(7Fh) or -128 (80h). The CLRV instruction clears
the overflow flag. There is no set instruction. When
Program
Status
bank(00~07H:bank0,
the BIT instruction is executed, Bit 6 of memory is
copied to this flag.
[Parity Flag, P]. This flag reflects on number of Ac-
cumulator’s “1.” If the number of Accumulator’s 1
is odd, P=0. otherwise, P=1. The sum of adding
Accumulator’s 1 to P is always even.
R0~R7.
General purpose 8-bit registers that are
locked in the lower portion of internal data area.
Data Pointer Register.
Data Pointer Register is
16-bit wide which consists of two-8bit registers,
DPH and DPL. This register is used as a data
pointer for the data transmission with external data
memory in the PSD Module.
Figure 5. 8032 MCU Registers
Figure 6. Configuration of BA 16-bit Registers
Figure 7. Stack Pointer
AI06636
Accumulator
B Register
Stack Pointer
Program Counter
Program Status Word
General Purpose
Register (Bank0-3)
Data Pointer Register
PCH
DPTR(DPH)
A
B
SP
PCL
PSW
R0-R7
DPTR(DPL)
AI06637
Two 8-bit Registers can be used as a "BA" 16-bit Registers
A
B
A
B
AI06638
SP (Stack Pointer) could be in 00h-FFh
SP
00h
Stack Area (30h-FFh)
00h-FFh
Hardware Fixed
Bit 15
Bit 0
Bit 8 Bit 7
相关PDF资料 |
PDF描述 |
|---|---|
| uPSD3212CV | Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件) |
| uPSD3212 | Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件) |
| UPSD3215A-24T1 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| UPSD3215AV-40T6T | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| UPSD3215BV-24U1 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| UPSD3212C-24T1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212C-24T6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic |
| UPSD3212C-24U1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212C-24U6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic |
| UPSD3212C-40T1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
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