ST7260E1 STMicroelectronics, ST7260E1 Datasheet - Page 2
ST7260E1
Manufacturer Part Number
ST7260E1
Description
LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 8K FLASH/ROM AND SERIAL COMMUNICATION INTERFACE (SCI)
Manufacturer
STMicroelectronics
Datasheet
1.ST7260E2.pdf
(139 pages)
Specifications of ST7260E1
4 Or 8 Kbytes Program Memory
high density Flash (HDFlash), or FastROM with readout and write protection
- Current page: 2 of 139
- Download datasheet (2Mb)
Contents
Contents
1
2
3
4
5
6
7
2/139
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Register & memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Flash program memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1
5.2
5.3
5.4
5.5
5.6
5.7
Central processing unit (CPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1
6.2
6.3
Reset and clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.1
7.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.1
ICC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ICP (in-circuit programming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
IAP (in-application programming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Related documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.7.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
CPU registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Low voltage detector (LVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.2.1
7.2.2
Readout protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Flash control/status register (FCSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Index registers (X and Y) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Program counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Condition code register (CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Stack pointer register (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Watchdog reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
External reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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