S3C9234 Overview
A dual address/data bus architecture and bit- or nibble-configurable I/O ports provide a flexible programming environment for applications with varied memory and I/O requirements. Timer/counters with selectable operating modes are included to support real-time operations. S3C9234/P9234 MICROCONTROLLER The S3C9234 can be used for dedicated control functions in a variety of applications, and is especially designed for...
S3C9234 Key Features
- SAM88RCRI CPU core LCD Controller/Driver
- 32 segments and 4 mon terminals Static, 1/2 duty, 1/3 duty, and 1/4 duty selectable Internal resistor circuit for LCD bi
- 4K × 8 bits program memory (ROM) 208 × 8 bits data memory (RAM) (Including LCD data memory)
- 8-bit transmit/receive mode 8-bit receive mode LSB-first or MSB-first transmission selectable Internal or external clock
- 41 instructions Idle and Stop instructions added for power-down modes
- I/O: 16 pins I/O: 36 pins (sharing with LCD signal outputs)
- Idle mode: only CPU clock stops Stop mode: system clock and CPU clock stop
- Crystal, ceramic, or RC for main clock Main clock frequency: 0.4 MHz
- 8MHz 32.768 kHz crystal oscillation circuit for sub clock
- 11 interrupt source and 1 vector One interrupt level
S3C9234 Applications
- 7 configurable I/O ports including ports shared with segment/mon drive outputs
- 7-bit programmable pins for external interrupts
- One 8-bit basic timer for oscillation stabilization and watch-dog functions
- Two 8-bit timer/counters with selectable operating modes
- Watch timer for real time