Instruction Manual

Preliminary W79E8213/W79E8213R Data Sheet
Publication Release Date: July 11, 2008
- 18 - Revision A2
DATA POINTER HIGH
Bit: 7 6 5 4 3 2 1 0
DPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1 DPH.0
Mnemonic: DPH Address: 83h
BIT NAME FUNCTION
7-0 DPH.[7:0]
This is the high byte of the standard 8052 16-bit data pointer.
This is the high byte of the DPTR 16-bit data pointer.
POWER CONTROL
Bit: 7 6 5 4 3 2 1 0
- - BOF POR GF1 GF0 PD IDL
Mnemonic: PCON Address: 87h
BIT NAME FUNCTION
7 - Reserved.
6 - Reserved.
5 BOF
0: Cleared by software.
1: Set automatically when a brownout reset or interrupt has occurred. Also set at
power on.
4 POR
0: Cleared by software.
1: Set automatically when a power-on reset has occurred.
3 GF1 General purpose user flags.
2 GF0 General purpose user flags.
1 PD
1: The CPU goes into the POWER DOWN mode. In this mode, all the clocks are
stopped and program execution is frozen.
0 IDL
1: The CPU goes into the IDLE mode. In this mode, the clocks CPU clock stopped,
so program execution is frozen. But the clock to the serial, timer and interrupt
blocks is not stopped, and these blocks continue operating.
TIMER CONTROL
Bit: 7 6 5 4 3 2 1 0
TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0
Mnemonic: TCON Address: 88h