Freescale Semiconductor ColdFire MCF52210 - Manual (Page 273)

Edge Port Module (EPORT)
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 16-5
16.4.4 Edge Port Data Register (EPDR)
The EPORT data register (EPDR) holds the data to be driven to the pins.
16.4.5 Edge Port Pin Data Register (EPPDR)
The EPORT pin data register (EPPDR) reflects the current state of the pins.
IPSBAR
Offset:
0x13_0004 (EPDR) Access: User read/write
7 6 5 4 3 2 1 0
R
EPD7 EPD6 EPD5 EPD4 EPD3 EPD2 EPD1
0
W
Reset: 1 1 1 1 1 1 1 1
Figure 16-5. EPORT Port Data Register (EPDR)
Table 16-6. EPDR Field Descriptions
Field Description
7–1
EPDn
Edge Port Data Bits. An internal register stores data written to EPDR; 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, must be cleared.
IPSBAR
Offset:
0x13_0005 (EPPDR) Access: User read-only
7 6 5 4 3 2 1 0
R EPPD7 EPPD6 EPPD5 EPPD4 EPPD3 EPPD2 EPPD1 0
W
Reset: [IRQ7] [IRQ6] [IRQ5] [IRQ4] [IRQ3] [IRQ2] [IRQ1] 0
Figure 16-6. EPORT Port Pin Data Register (EPPDR)
Table 16-7. EPPDR Field Descriptions
Field Description
7–1
EPPDn
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, must be cleared.