SAA5531 Philips Semiconductors, SAA5531 Datasheet - Page 19

• Manufacturer Part Number: SAA5531
• Description: Enhanced TV microcontrollers with On-Screen Display OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Feb 23
Port 1 (P1)
P17 to P10
Port 2 (P2)
P27 to P20
Port 3 (P3)
P37 to P30
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 pins. For example, the
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 pins. For example, the
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 pins. For example, the
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 pins. For example, the
Enhanced TV microcontrollers with
On-Screen Display (OSD)
BIT
Port 1 I/O register connected to external pins
Port 2 I/O register connected to external pins
Port 3 I/O register connected to external pins; P37 to P35 are only available with
the LQFP100 package.
configuration of Port 0 pin 3 is controlled by using bit 3 in both P0CFGA and
P0CFGB. P0CFGB<x>/P0CFGA<x>:
configuration of Port 1 pin 3 is controlled by using bit 3 in both P1CFGA and
P1CFGB. P1CFGB<x>/P1CFGA<x>:
configuration of Port 2 pin 3 is controlled by using bit 3 in both P2CFGA and
P2CFGB. P2CFGB<x>/P2CFGA<x>:
configuration of Port 3 pin 3 is controlled by using bit 3 in both P3CFGA and
P3CFGB. P3CFGB<x>/P3CFGA<x>:
00 = P0.x in open-drain configuration
01 = P0.x in quasi-bidirectional configuration
10 = P0.x in high-impedance configuration
11 = P0.x in push-pull configuration
00 = P1.x in open-drain configuration
01 = P1.x in quasi-bidirectional configuration
10 = P1.x in high-impedance configuration
11 = P1.x in push-pull configuration
00 = P2.x in open-drain configuration
01 = P2.x in quasi-bidirectional configuration
10 = P2.x in high-impedance configuration
11 = P2.x in push-pull configuration
00 = P3.x in open-drain configuration
01 = P3.x in quasi-bidirectional configuration
10 = P3.x in high-impedance configuration
11 = P3.x in push-pull configuration
19
FUNCTION
Preliminary specification
SAA55xx