ST92250CV2Q-Auto STMicroelectronics, ST92250CV2Q-Auto Datasheet - Page 67

• Manufacturer Part Number: ST92250CV2Q-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST92250CV2Q-Auto

• Internal Memory: Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 TM (Emulated EEPROM)
• Minimum Instruction Time: 83 ns (24 MHz int. clock)

Figure 38. Flash in-system Programming.
Jump to Flash
Code
Main
User
No
TestFlash Code
Initialisation
= 0 ?
SOUT0
Start
Enable Serial
Yes
Interface
WFI
Load in-system
in internal RAM
prog routine
Code Update
Enable DMA
through SCI.
prog routine
Call in-system
Routine
HALT
ST92124xxx-Auto/150xxxxx-Auto/250xxxx-Auto
Address
Match
(from SCI)
Test
Flash
Interrupt
Internal RAM (User Code Example)
Prog 1st table
of data from
RAM in Flash
prog routine
Load 1st table
of data in RAM
through S.I.
Inc. Address
Address ?
In-system
Yes
Yes
virgin ?
Flash
RET
Last
Load 2nd table
of data in RAM
Erase sectors
through SCI
No
No
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