IA88C00-PDW48I-R datasheet(40/80 Pages) INNOVASIC

40 / 80 page

IA88C00

Data Sheet

Microcontroller

As of Production Version -01

ENG 21 0 050519-00

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Innovasic Semiconductor

Page 40 of 80

1.888.824.4184

Figure 39. Port 4 Open-Drain (P4OD), R247 Bank 0

Bit

Initial Value

Read/Write

The Port 4 Open-Drain register defines the output driver type for Port 4. If a bit of Port 4 has been

configured as an output and the corresponding bit in the Port 4 Open-Drain register is a 1, the Port 4 bit

will have an open-drain output driver. If it is a 0, the Port 4 bit will have a push-pull output driver. If the

bit of Port 4 has been configured as an input, the corresponding bit is the Port 4 Open-Drain register has

no effect.

Figure 40. Port 4 Open-Drain (P4OD), R247 Bank 0

Bit

Initial Value

Read/Write

W/O

The Port 2/3 A Mode, Port 2/3 B Mode, Port 2/3 C Mode and Port 2/3 D Mode registers control the

modes of Ports 2 and 3. A separate 2-bit field for each of the bits of Ports 2 and 3 configures the bit as

input or output. The field also controls whether the bit is enabled as an external interrupt source and

selects the oputpus as open-drain or push-pull.

Figure 41. Port 2/3 A Mode Register, R248 Bank 0

Bit

Initial Value

Read/Write

W/O

The Port 2/3 A Mode, Port 2/3 B Mode, Port 2/3 C Mode and Port 2/3 D Mode registers control the

modes of Ports 2 and 3. A separate 2-bit field for each of the bits of Ports 2 and 3 configures the bit as

input or output. The field also controls whether the bit is enabled as an external interrupt source and

selects the oputpus as open-drain or push-pull.

IA88C00-PDW48I-R Datasheet(PDF) 40 Page - InnovASIC, Inc