Samsung C8249, P8245, P8249, S3C8245 Part II Hardware Descriptions

S3C8245/P8245/C8249/P8249 MICROCONTROLLER vii
Table of Contents (Continued)
Part II Hardware Descriptions
Chapter 7 Clock Circuit
Overview.............................................................................................................................................7-1
System Clock Circuit...................................................................................................................7-1
Clock Status During Power-Down Modes.......................................................................................7-2
System Clock Control Register (CLKCON).....................................................................................7-3
Chapter 8 nRESET and Power-Down
System nRESET.................................................................................................................................8-1
Overview.....................................................................................................................................8-1
Normal Mode Reset Operation......................................................................................................8-1
Hardware Reset Values................................................................................................................8-2
Power-Down Modes.............................................................................................................................8-5
Stop Mode..................................................................................................................................8-5
Idle Mode....................................................................................................................................8-6
Chapter 9 I/O Ports
Overview.............................................................................................................................................9-1
Port Data Registers.....................................................................................................................9-2
Port 0.........................................................................................................................................9-3
Port 1.........................................................................................................................................9-6
Port 2.........................................................................................................................................9-8
Port 3.........................................................................................................................................9-10
Port 4.........................................................................................................................................9-12
Port 5.........................................................................................................................................9-14
Chapter 10 Basic Timer
Overview.............................................................................................................................................10-1
Basic Timer (BT) .............................................................................................................................10-1
Basic Timer Control Register (BTCON)..............................................................................................10-1
Basic Timer Function Description......................................................................................................10-3