KS57C2308/P2308/C2316/P2316 PRODUCT OVERVIEW

1-3

BLOCK DIAGRAM
Interrupt
Control
Block
Instruction
Register
Program
Counter
Program
Status Word
Stack
Pointer
Arithmetic and Logic Unit
Instruction Decoder
Clock
RESET
XIN
XTIN
Internal
Interrupts
INT0, INT1,INT2
P3.0/LCDCK
P3.1/LCDSY
P3.2
P3.3
I/O Port 3
512 x 4-Bit
Data
Memory
8/16-Kbyte
Program
Memory
LCD Drive/
Controller
BIAS
VLC0-VLC2
LCDCK/P3.0
LCDSY/P3.1
COM0-COM3
SEG0-SEG23
P8.0-P8.7/
SEG24-SEG31
P2.3/BUZ
XOUT
XTOUT
P6.0-P6.3/
KS0-KS3 I/O Port 6
P7.0-P7.3/
KS4-KS7 I/O Port 7
P4.0-P4.3 I/O Port 3
P5.0-P5.3 I/O Port 4
8-Bit Timer/
Counter 0
P1.3/TCL0
P2.0/TCLO0
P8.0-P8.7/
SEG24-SEG31 I/O Port 8
P1.0/INT0
P1.1/INT1
P1.2/INT2
P1.3/TCL0
Input Port 1
P2.0/TCLO0
P2.1
P2.2/CLO
P2.3/BUZ
I/O Port 2
Basic
Timer
4-Bit
Accumulator
FLAGS
P0.0/INT4
P0.1/SCK
P0.2/SO
P0.3/SI
I/O Port 0
Serial I/O
Port
P0.2
/SO P0.3
/SI
P0.1
/SCK
Watch-Dog
Timer
Watch
Timer

Figure 1-1. KS57C2308/C2316 Simplified Block Diagram