Renesas SH7709S Manual Do Utilizador

Rev. 5.00, 09/03, page 575 of 760

18.3.6

Port F Control Register (PFCR)

Bit:

PF7

MD1

PF7

MD0

PF6

MD1

PF6

MD0

PF5

MD1

PF5

MD0

PF4

MD1

PF4

MD0

PF3

MD1

PF3

MD0

PF2

MD1

PF2

MD0

PF1

MD1

PF1

MD0

PF0

MD1

PF0

MD0

Initial value:

1/0

R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W

The port F control register (PFCR) is a 16-bit readable/writable register that selects the pin
functions. PFCR is initialized to H'AAAA (ASEMD0 = 1) or H'00AA (ASEMD0 = 0) by a power-
on reset, but is not initialized by a manual reset, in standby mode, or in sleep mode.

Bits 15 and 14—PF7 Mode 1 and 0 (PF7MD1, PF7MD0)
Bits 13 and 12—PF6 Mode 1 and 0 (PF6MD1, PF6MD0)
Bits 11 and 10—PF5 Mode 1 and 0 (PF5MD1, PF5MD0)
Bits 9 and 8—PF4 Mode 1 and 0 (PF4MD1, PF4MD0)
Bits 7 and 6—PF3 Mode 1 and 0 (PF3MD1, PF3MD0)
Bits 5 and 4—PF2 Mode 1 and 0 (PF2MD1, PF2MD0)
Bits 3 and 2—PF1 Mode 1 and 0 (PF1MD1, PF1MD0)
Bits 1 and 0—PF0 Mode 1 and 0 (PF0MD1, PF0MD0)
These bits select the pin functions and perform input pull-up MOS control.

Bit (2n + 1)

Bit 2n

PFnMD1

PFnMD0

Pin Function

Other function (see table 18.1)

(Initial value) (

ASEMD0

= 0)

Reserved

Port input (Pull-up MOS: on)

(Initial value) (

ASEMD0

= 1)

Port input (Pull-up MOS: off)

(n = 4 to 7)