Memory Map and Registers

 

 

Table 11-6. EPDR Field Descriptions

 

 

 

Bit(s)

Name

Description

 

 

 

7–1

EPDx

Edge port data bits. Data written to EPDR is stored in an internal register; if any pin of the port

 

 

is configured as an output, the bit stored for that pin is driven onto the pin. Reading EDPR

 

 

returns the data stored in the register. Reset sets EPD7-EPD1.

 

 

 

0

Reserved, should be cleared.

 

 

 

11.4.2.5Edge Port Pin Data Register (EPPDR)

 

 

 

7

 

 

6

 

5

4

3

 

2

1

0

 

 

Field

 

EPPD7

 

 

EPPD6

EPPD5

EPPD4

EPPD3

 

EPPD2

EPPD1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

 

 

 

 

 

 

 

 

 

Current pin state

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R/W

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address

 

 

 

 

 

 

 

 

 

IPSBAR + 0x0013_0005

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 11-6. EPORT Port Pin Data Register (EPPDR)

 

 

 

 

 

 

 

 

Table 11-7. EPPDR Field Descriptions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit(s)

Name

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

7–1

EPPDx

 

 

Edge port pin data bits. The read-only EPPDR reflects the current state of the EPORT pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IRQ7–IRQ1. Writing to EPPDR has no effect, and the write cycle terminates normally. Reset

 

 

 

 

 

does not affect EPPDR.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

Reserved, should be cleared.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11.4.2.6Edge Port Flag Register (EPFR)

Field

Reset

R/W Address

7

6

5

4

3

2

1

0

EPF7

EPF6

EPF5

 

EPF4

EPF3

EPF2

EPF1

 

 

 

 

 

 

 

 

 

 

 

 

0000_0000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R/W

 

 

 

R

 

 

 

 

 

 

 

 

 

 

IPSBAR + 0x0013_0006

 

 

 

 

 

 

 

 

 

 

 

 

Figure 11-7. EPORT Port Flag Register (EPFR)

11-6

MCF5282 User’s Manual

MOTOROLA

Page 252
Image 252
Motorola MCF5282, MCF5281 Edge Port Pin Data Register Eppdr, Edge Port Flag Register Epfr, Epdr Field Descriptions