Eport Port Pin Data Register (Eppdr); Eport Port Flag Register (Epfr); Epdr Field Descriptions; Eppdr Field Descriptions - Motorola ColdFire MCF5281 User Manual

Memory Map and Registers
Bit(s) Name
7–1 EPDx
0 —
11.4.2.5 Edge Port Pin Data Register (EPPDR)
Field EPPD7
Reset
R/W
Address
Figure 11-6. EPORT Port Pin Data Register (EPPDR)
Bit(s) Name
7–1 EPPDx
0 —
11.4.2.6 Edge Port Flag Register (EPFR)
Field
Reset
R/W
Address
11-6
Table 11-6. EPDR Field Descriptions
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.
Reserved, should be cleared.
7 6 5
EPPD6 EPPD5
Table 11-7. EPPDR Field Descriptions
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.
Reserved, should be cleared.
7 6 5
EPF7 EPF6 EPF5
Figure 11-7. EPORT Port Flag Register (EPFR)
MCF5282 User's Manual
Description
4 3
EPPD4 EPPD3
Current pin state
R
IPSBAR + 0x0013_0005
Description
4 3
EPF4 EPF3
0000_0000
R/W
IPSBAR + 0x0013_0006
2 1 0
EPPD2 EPPD1 —
0
2 1 0
EPF2 EPF1 —
R
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