ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 150

• Manufacturer Part Number: ST7232AK2-Auto
• Description: 8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMicroelectronics

Specifications of ST7232AK2-Auto

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and bypass for external clock
• Four Power Saving Modes: halt, active halt, wait and slow
• Main Clock Controller With: real time base, beep and clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, PWM and pulse generator modes

Instruction set
11.3
150/201
Using a pre-byte
The instructions are described with one to four opcodes.
In order to extend the number of available opcodes for an 8-bit CPU (256 opcodes), three
different prebyte opcodes are defined. These prebytes modify the meaning of the instruction
they precede.
The whole instruction becomes:
PC-2
PC-1
PC
PC+1
These prebytes enable instructions in Y as well as indirect addressing modes to be
implemented. They precede the opcode of the instructions in X or the instructions using
direct addressing mode. The prebytes are:
PDY 90
PIX 92
PIY 91
Replace an X based instruction using immediate, direct, indexed, or inherent
addressing mode by a Y one
Replace an instruction using direct, direct bit, or direct relative addressing mode
to an instruction using the corresponding indirect addressing mode
It also changes an instruction using X indexed addressing mode to an instruction
using indirect X indexed addressing mode
Replace an instruction using X indirect indexed addressing mode by a Y one
End of previous instruction
Prebyte
Opcode
Additional word (0 to 2) according to the number of bytes required to compute
the effective address
ST7232Axx-Auto