参数资料
型号: SST89C58RC-40-C-QIF-T
厂商: Microchip Technology
文件页数: 27/88页
文件大小: 0K
描述: IC MCU 8BIT FLASH 40WQFN
标准包装: 3,000
系列: FlashFlex®
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: EBI/EMI,I²C,SMBus,UART/USART
外围设备: 欠压检测/复位,POR,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: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
33
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Note: Note: VIL = Input Low Voltage: VIH = Input High Voltage; VIH1 = Input High Voltage (XTAL, RST); X = Don’t care; AL =
Address low order byte; AH = Address high order byte; DI = Data Input; DO = Data Output.
IAP Command Sequence
In order to protect the flash during the power-off condition, the application needs to write a special,
sequential command sequence to the SFCM SFR address before issuing a valid IAP command.
All of the following commands can only be initiated in the IAP mode. In all situations, writing the control
byte to the SFCM register will initiate all of the operations. A feed sequence is required prior to issuing
commands through SFCM. Without the feed sequence all IAP commands are ignored. Sector-Erase,
Byte-Program, and Byte-Verify commands will not be carried out on a specific memory page if the
security locks are enabled on the memory page.
Table 12:IAP Commands
Operation
SFCM
[6:0]
SFAH
SFAL
SFDT
Chip-Erase
01
XX
55
Partition0-Erase
0D
XX
55
Sector-Erase
0B
AH
AL
XX
Byte-Program
0E
AH
AL
DI
Byte-Verify (Read)
0C
AH
AL
DO
Secure-Page0
03
90
XX
Secure-Page1
03
91
XX
Secure-Page2
03
92
XX
Secure-Page3
03
93
XX
Secure-Page4
03
94
XX
Disable-Extern-IAP
05
B0
XX
Disable-Extern-Boot
05
B1
XX
Disable-Extern-MOVC
05
B2
XX
Disable-Extern-Host-Cmd
05
B3
XX
Enable-Clock-Double
08
E0
XX
Boot-From-User-Vector
08
E1
XX
Boot-From-Zero
08
E2
XX
Set-User-Boot-Vector
09
F0
XX
DI
T0-0.0
1294
Table 13:Command Sequence Table
Action
Access Space in IAP
Feed Sequence
Access FLASH Partition 0
0x0000~0x7FFF
1. Write A2H to SFIS0 (097H)
2. Write DFH to SFIS1 (0C4H)
3. Then write IAP command to SFCM (0B2H)
Access FLASH Partition 1
0X0000~0X07FF
1. Write A2H to SFIS0 (097H)
2. Write FDH to SFIS1 (0C4H)
3. Then write IAP command to SFCM (0B2H)
T0-0.0
25100
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