参数资料
型号: PIC16C923T-08I/PT
厂商: Microchip Technology
文件页数: 25/115页
文件大小: 0K
描述: IC MCU OTP 4KX14 LCD DVR 64TQFP
标准包装: 1,200
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 8MHz
连通性: I²C,SPI
外围设备: LCD,POR,PWM,WDT
输入/输出数: 25
程序存储器容量: 7KB(4K x 14)
程序存储器类型: OTP
RAM 容量: 176 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 6 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 带卷 (TR)
配用: DVA16PQ640-ND - ADAPTER DEVICE FOR MPLAB-ICE
AC164023-ND - MODULE SKT PROMATEII 68TQFP
1997 Microchip Technology Inc.
DS30444E - page 17
PIC16C9XX
4.0
MEMORY ORGANIZATION
4.1
Program Memory Organization
The PIC16C9XX family has a 13-bit program counter
capable of addressing an 8K x 14 program memory
space.
Only the rst 4K x 14 (0000h-0FFFh) is physically
implemented. Accessing a location above the physi-
cally implemented addresses will cause a wraparound.
The reset vector is at 0000h and the interrupt vector is
at 0004h.
FIGURE 4-1:
PROGRAM MEMORY MAP
AND STACK
PC<12:0>
13
0000h
0004h
0005h
07FFh
0800h
0FFFh
1000h
1FFFh
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
On-chip Program
Memory (Page 1)
Memory (Page 0)
CALL, RETURN
RETFIE, RETLW
User
Memor
y
Space
4.2
Data Memory Organization
The data memory is partitioned into four Banks which
contain the General Purpose Registers and the Special
Function Registers. Bits RP1 and RP0 are the bank
select bits.
RP1:RP0 (STATUS<6:5>)
11 = Bank 3 (180h-1FFh)
10 = Bank 2 (100h-17Fh)
01 = Bank 1 (80h-FFh)
00 = Bank 0 (00h-7Fh)
The lower locations of each Bank are reserved for the
Special Function Registers. Above the Special Func-
tion Registers are General Purpose Registers imple-
mented as static RAM. All four banks contain special
function registers. Some “high use” special function
registers are mirrored in other banks for code reduction
and quicker access.
4.2.1
GENERAL PURPOSE REGISTER FILE
The register le can be accessed either directly, or indi-
rectly
through
the
File
Select
Register
FSR
The following General Purpose Registers are not phys-
ically implemented:
F0h-FFh of Bank 1
170h-17Fh of Bank 2
1F0h-1FFh of Bank 3
These locations are used for common access across
banks.
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