SST89E58RD2-40-I-TQJE Microchip Technology, SST89E58RD2-40-I-TQJE Datasheet - Page 38

• Manufacturer Part Number: SST89E58RD2-40-I-TQJE
• Description: 4.5 To 5.5V FlashFlex 8-bit 8051 Microcontroller 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: FlashFlex®r

Specifications of SST89E58RD2-40-I-TQJE

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP
• Processor Series: FlashFlex51
• Core: C51
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Data Sheet
4.2.4.4 Byte-Program
The Byte-Program command programs data into a single
byte. The address is determined by the contents of SFAH
and SFAL. The data byte is in SFDT.
4.2.4.5 Byte-Verify
The Byte-Verify command allows the user to verify that the
device has correctly performed an Erase or Program com-
mand. Byte-Verify command returns the data byte in SFDT
if the command is successful. The user is required to check
©2008 Silicon Storage Technology, Inc.
FIGURE
FIGURE
operation completion
MOV SFCM, #0EH
SFST[2] indicates
Polling scheme
4-4: Byte-Program
4-6: Prog-SB3, Prog-SB2, Prog-SB1
MOV SFAH, #byte_addressH
MOV SFAL, #byte_addressL
Program byte address
Move data to SFDT
MOV SFDT, #data
ORL SFCF, #40H
IAP Enable
MOV SFCM, #0FH
MOV SFCM, #8FH
Program SB1
or
indicates completion
MOV SFCM, #8EH
Interrupt scheme
INT1 interrupt
indicates completion
Polling SFST[2]
OR
1339 F11.0
MOV SFDT, #0AAH
MOV SFCM, #03H
MOV SFCM, #83H
ORL SFCF, #40H
Program SB2
IAP Enable
SST89E54RD2A/RDA / SST89E58RD2A/RDA
Set-Up
or
38
that the previous flash operation has fully completed before
issuing a Byte-Verify. Byte-Verify command execution time
is short enough that there is no need to poll for command
completion and no interrupt is generated.
4.2.4.6 Prog-SB3, Prog-SB2, Prog-SB1
Prog-SB3, Prog-SB2, Prog-SB1 commands are used to
program the security bits (see Table 9-1). Completion of
any of these commands, the security options will be
updated immediately.
Security bits previously in un-programmed state can be
programmed by these commands. Prog-SB3, Prog-SB2
and Prog-SB1 commands should only reside in Block 1 or
external code memory.
FIGURE
indicates completion
INT1# Interrupt
OR
MOV SFCM, #05H
MOV SFCM, #85H
4-5: Byte-Verify
MOV SFAH, #byte_addressH
MOV SFAL, #byte_addressL
Program SB3
Program byte address
MOV SFCM, #0CH
ORL SFCF, #40H
or
SFDT register
contains data
IAP Enable
1339 F13.0
FlashFlex MCU
1339 F12.0
S71339-02-000
02/08