参数资料
型号: T89C51CC01UA-SLSIM
厂商: Atmel
文件页数: 90/123页
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
标准包装: 27
系列: AT89C CAN
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: CAN,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
配用: AT89STK-06-ND - KIT DEMOBOARD 8051 MCU W/CAN
其它名称: T89C51CC01UASLSIM
29
A/T89C51CC01
4129N–CAN–03/08
Reset Value = X00X 1100b
Not bit addressable
Table 20. AUXR1 Register
AUXR1 (S:A2h)
Auxiliary Control Register 1
Reset Value = XXXX 00X0b
Note:
1. ENBOOT is initialized with the invert BLJB at reset. See In-System Programming
section.
1
EXTRAM
Internal/External RAM (00h - FFh)
access using MOVX @ Ri/@ DPTR
0 - Internal XRAM access using MOVX @ Ri/@ DPTR.
1 - External data memory access.
0
A0
Disable/Enable ALE)
0 - ALE is emitted at a constant rate of 1/6 the oscillator frequency (or 1/3 if X2
mode is used)
1 - ALE is active only during a MOVX or MOVC instruction.
7
6
5
4
3
2
1
0
-
ENBOOT
-
GF3
0
-
DPS
Bit
Number
Bit
Mnemonic
Description
7-6
-
Reserved
The value read from these bits is indeterminate. Do not set these bits.
5
ENBOOT(1)
Enable Boot Flash
Set this bit for map the boot Flash between F800h -FFFFh
Clear this bit for disable boot Flash.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
GF3
General-purpose Flag 3
2
0
Always Zero
This bit is stuck to logic 0 to allow INC AUXR1 instruction without affecting GF3
flag.
1
-
Reserved for Data Pointer Extension.
0
DPS
Data Pointer Select Bit
Set to select second dual data pointer: DPTR1.
Clear to select first dual data pointer: DPTR0.
Bit
Number
Bit
Mnemonic Description
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