2002 May 06
20
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA567x; SAA569x
Port 0 Configuration A (P0CFGA) and Port 0 Configuration B (P0CFGB)
P0CFGA<7:0> and P0CFGB<7:0>
These two registers are used to configure Port 0 lines. For example, the
configuration of Port 0 pin 3 is controlled by setting bit 3 in both P0CFGA and
P0CFGB. P0CFGB<x>/P0CFGA<x>:
00 = P0.x in Mode 0 (open-drain)
01 = P0.x in Mode 1 (quasi-bidirectional)
10 = P0.x in Mode 2 (high-impedance)
11 = P0.x in Mode 3 (push-pull)
Port 1 Configuration A (P1CFGA) and Port 1 Configuration B (P1CFGB)
P1CFGA<7:0> and P1CFGB<7:0>
These two registers are used to configure Port 1 lines. For example, the
configuration of Port 1 pin 3 is controlled by setting bit 3 in both P1CFGA and
P1CFGB. P1CFGB<x>/P1CFGA<x>:
00 = P1.x in Mode 0 (open-drain)
01 = P1.x in Mode 1 (quasi-bidirectional)
10 = P1.x in Mode 2 (high-impedance)
11 = P1.x in Mode 3 (push-pull)
Port 2 Configuration A (P2CFGA) and Port 2 Configuration B (P2CFGB)
P2CFGA<7:0> and P2CFGB<7:0>
These two registers are used to configure Port 2 lines. For example, the
configuration of Port 2, pin 3 is controlled by setting bit 3 in both P2CFGA and
P2CFGB. P2CFGB<x>/P2CFGA<x>:
00 = P2.x in Mode 0 (open-drain)
01 = P2.x in Mode 1 (quasi-bidirectional)
10 = P2.x in Mode 2 (high-impedance)
11 = P2.x in Mode 3 (push-pull)
Port 3 Configuration A (P3CFGA) and Port 3 Configuration B (P3CFGB)
P3CFGA<7:0> and P3CFGB<7:0>
These two registers are used to configure Port 3 lines. For example, the
configuration of Port 3, pin 3 is controlled by setting bit 3 in both P3CFGA and
P3CFGB. P3CFGB<x>/P3CFGA<x>:
00 = P3.x in Mode 0 (open-drain)
01 = P3.x in Mode 1 (quasi-bidirectional)
10 = P3.x in Mode 2 (high-impedance)
11 = P3.x in Mode 3 (push-pull)
Power Control Register (PCON)
SMOD
ARD
RFI
WLE
GF1
GF0
PD
IDL
UART baud rate double control
auxiliary RAM disable, all MOVX instructions access the external data memory
disable ALE during internal access to reduce radio frequency Interference
Watchdog timer enable
general purpose flag
general purpose flag
Power-down activation bit
Idle mode activation bit
BITS
FUNCTION