参数资料
型号: P89LPC9171FDH,129
厂商: NXP Semiconductors
文件页数: 14/27页
文件大小: 0K
描述: IC 80C51 MCU FLASH 2KB 16TSSOP
标准包装: 96
系列: LPC900
核心处理器: 8051
芯体尺寸: 8-位
速度: 18MHz
连通性: I²C,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 14
程序存储器容量: 2KB(2K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.4 V ~ 3.6 V
数据转换器: A/D 4x8b; D/A 1x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
其它名称: 935290262129
2010 Microchip Technology Inc.
Preliminary
DS39979A-page 79
PIC18F87J72 FAMILY
REGISTER 7-1:
EECON1: EEPROM CONTROL REGISTER 1
U-0
R/W-0
R/W-x
R/W-0
R/S-0
U-0
WPROG
FREE
WRERR(1)
WREN
WR
bit 7
bit 0
Legend:
S = Settable bit (cannot be cleared in software)
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
Unimplemented: Read as ‘0’
bit 5
WPROG: One Word-Wide Program bit
1 = Program 2 bytes on the next WR command
0 = Program 64 bytes on the next WR command
bit 4
FREE: Flash Erase Enable bit
1 = Performs an erase operation on the next WR command (cleared by completion of erase operation)
0 = Perform write only
bit 3
WRERR: Flash Program Error Flag bit(1)
1 = A write operation is prematurely terminated (any Reset during self-timed programming in normal
operation or an improper write attempt)
0 = The write operation completed
bit 2
WREN: Flash Program Write Enable bit
1 = Allows write cycles to Flash program memory
0 = Inhibits write cycles to Flash program memory
bit 1
WR: Write Control bit
1 = Initiates a program memory erase cycle or write cycle
(The operation is self-timed and the bit is cleared by hardware once write is complete. The WR bit
can only be set (not cleared) in software.)
0 = Write cycle is complete
bit 0
Unimplemented: Read as ‘0’
Note 1:
When a WRERR occurs, the EEPGD and CFGS bits are not cleared. This allows tracing of the error
condition.
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