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参数资料
| 型号： | MTA85812S-10I/SS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, RISC MICROCONTROLLER, PDSO20 |
| 封装： | 0.209 INCH, PLASTIC, SSOP-20 |
| 文件页数： | 2/72页 |
| 文件大小： | 760K |
| 代理商： | MTA85812S-10I/SS |
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MTA85XXX
DS40115C-page 10
1995 Microchip Technology Inc.
5.0
DATA MEMORY AND
OPERATIONAL REGISTER
FILES
For MTA854XX devices, there are seven special
function registers (operational register files) and 25
general purpose registers. Data addresses 00h-06h
are
reserved
for
the
operational
register
files,
addresses 07h-1Fh are used for the general purpose
file registers. FSR bits (STATUS <6:5>) are not used.
For MTA858XX devices, there are seven special
function
register
(operational
register
files)
and
73 general purpose registers. These registers are
mapped according to Figure 5-1. Note that several
address blocks are mapped to the same physical
registers. To address the banked registers (addresses
above 0Fh) bits (STATUS <6:5>) of the FSR are used.
FIGURE 5-1:
DATA MEMORY MAP
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
General
Purpose
Register
File
A10
TMR0
PCL
STATUS
FSR
PORTA
PORTB
PORTC (**)
A9
A8
CALL
RETLW
STACK 1
OPTION
TRISA
TRISB
TRISC
W
From Program Memory
To and from
register file
via ALU
STACK 2
10 9 8 7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
5 4 3 2 1 0
7 6 5 4 3 2 1 0
File
Address
Bit 6, 5 of FSR: Bank Select
(C58A, CR58A Only)
00
30
01
10
11
50
70
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
General
Purpose
Register
File
(All Types)
General Purpose
Register File
(C58A, CR58A Only)
(Bank 0) (***)
(Bank 1) (***)
(Bank 2) (***)
(Bank 3) (***)
3F
5F
7F
(*)
Not a physically implemented register. See Section 4.5 for details.
(**)
File address 7h is a general purpose register on the PIC16C54A, and PIC16C58A/CR58A.
(***)
Bank 0 is available on all microcontrollers while Bank 1, Bank 2, and Bank 3 are only available on the
C58A, CR58A. (Section 4.5).
INDF (*)
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