HD6417618 datasheet(389/646 Pages) RENESAS

389 / 646 page

Section 14 Serial Communication Interface with FIFO (SCIF)

Rev. 6.00 Jun. 12, 2007 Page 357 of 610

REJ09B0131-0600

14.3.11

Serial Port Register (SCSPTR)

SCSPTR is a 16-bit register that controls input/output and data for the pins multiplexed to the

SCIF function. Bits 7 and 6 can control the

RTS pin, bits 5 and 4 can control the CTS pin, and bits

3 and 2 can control the SCK pin. Bits 1 and 0 can be used to read the input data from the RxD pin

and to output data to the TxD pin, so they control break of serial transfer. In addition to

descriptions of individual bits shown below, see section 14.6, Serial Port Register (SCSPTR) and

SCIF Pins.

SCSPTR can always be read from or written to by the CPU. Bits 7, 5, 3, and 1 in SCSPTR are

initialized by a power-on reset.

Bit

Bit Name

Initial

value

R/W

Description

15 to 8



All 0

Reserved

These bits are always read as 0. The write value should

always be 0.

RTSIO

R/W

RTS Port Input/Output Control

Controls the

RTS pin in combination with the RTSDT bit

in this register and the MCE bit in SCFCR.

This bit is reserved in SCPTR_2 of SCIF channel 2

since SCIF channel 2 does not support the flow control.

RTSDT

*

R/W

RTS Port Data

Controls the

RTS pin in combination with the RTSIO bit

in this register and the MCE bit in SCFCR. Select the

RTS pin function in the PFC (pin function controller)

beforehand.

MCE RTSIO RTSDT:

RTS pin state

×:

Input (initial state)

Low level output

High level output

×:

Sequence output according to

modem control logic

×: Don't care

The

RTS pin state is read from this bit instead of the set

value. This bit is reserved in SCPTR_2 of SCIF channel

2 since SCIF channel 2 does not support the flow

control.

HD6417618 Datasheet(PDF) 389 Page - Renesas Technology Corp

HD6417618 Datasheet(HTML) 389 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL