BASIC TIMER

S3C84E5/C84E9/P84E9

 

 

fxx

DIV

R

Bit 0

fxx/4096

fxx/1024

fxx/128

Bits 3, 2

MUX

Bit 1

 

 

RESET or STOP

 

 

 

 

 

 

Basic Timer Control Register (Write '1010xxxxB' to disable)

Data Bus

Clear

8-Bit Up Counter

 

 

 

 

 

 

 

RESET

OVF

 

 

 

 

(BTCNT, Read-Only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start the CPU (note)

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: During a power-on reset operation, the CPU is idle during the required oscillation stabilization interval (until bit 4 of the basic timer counter overflows).

Figure 10-2. Basic Timer Block Diagram

10-4

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Image 244
Samsung S3C84E5 user manual Div, Mux, Ovf, 10-4