参数资料
型号: C8051F304-GM
厂商: Silicon Laboratories Inc
文件页数: 172/178页
文件大小: 0K
描述: IC 8051 MCU 4K FLASH 11QFN
产品培训模块: Serial Communication Overview
标准包装: 122
系列: C8051F30x
核心处理器: 8051
芯体尺寸: 8-位
速度: 25MHz
连通性: SMBus(2 线/I²C),UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 8
程序存储器容量: 4KB(4K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 10-VFDFN 裸露焊盘
包装: 管件
产品目录页面: 623 (CN2011-ZH PDF)
配用: 336-1444-ND - ADAPTER PROGRAM TOOLSTICK F300
其它名称: 336-1250
Rev. 2.9
93
C8051F300/1/2/3/4/5
SFR Definition 10.2.
Bits7–0: FLKEY: Flash Lock and Key Register
Write:
This register must be written to before Flash writes or erases can be performed. Flash
remains locked until this register is written to with the following key codes: 0xA5, 0xF1. The
timing of the writes does not matter, as long as the codes are written in order. The key codes
must be written for each Flash write or erase operation. Flash will be locked until the next
system reset if the wrong codes are written or if a Flash operation is attempted before the
codes have been written correctly.
Read:
When read, bits 1–0 indicate the current Flash lock state.
00: Flash is write/erase locked.
01: The first key code has been written (0xA5).
10: Flash is unlocked (writes/erases allowed).
11: Flash writes/erases disabled until the next reset.
R/W
Reset Value
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xB7
FLKEY: Flash Lock and Key
SFR Definition 10.3.
Bits7:
FOSE: Flash One-shot Enable
This bit enables the 50 ns Flash read one-shot. When the Flash one-shot disabled, the
Flash sense amps are enabled for a full clock cycle during Flash reads.
0: Flash one-shot disabled.
1: Flash one-shot enabled.
Bits6–0: RESERVED. Read = 0. Must Write 0.
R/W
Reset Value
FOSE
Reserved Reserved Reserved Reserved Reserved Reserved Reserved 10000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xB6
FLSCL: Flash Scale
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