S3C72P9 using equivalent, single-chip microcontroller has been designed for high performance using.
Memory
*
* 1,056 × 4-bit RAM (excluding LCD display RAM) 32,768 × 8-bit ROM
* 39 I/O Pins
*
* I/O: 35 pins Input only: 4 pins Interrupts
* LCD Con.
which require LCD functions. Up to 39 pins of the 100-pin QFP package can be dedicated to I/O. Eight vectored interrupts.
Table 1-1. S3C72P9/P72P9 Pin Descriptions Pin Name P0.0 P0.1 P0.2 P0.3 Pin Type I/O Description 4-bit I/O port. 1-bit and 4-bit read/write and test are possible. Individual pins are software configurable as input or output. Individual pins are softw.
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