Pin Configuration; Register Configuration; Table 16.1 Scif Pins; Table 16.2 Scif Registers - Hitachi SH7751 Hardware Manual

16.1.3

Pin Configuration

Table 16.1 shows the SCIF pin configuration.

Table 16.1 SCIF Pins

Pin Name
Serial clock pin
Receive data pin
Transmit data pin
Modem control pin
Modem control pin
Note: These pins function as the MD0, MD1, MD2, MD7, and MD8 mode input pins after a power-
on reset. These pins are made to function as serial pins by performing SCIF operation
settings with the TE, RE, CKE1, and CKE0 bits in SCSCR2 and the MCE bit in SCFCR2.
Break state transmission and detection can be set in the SCIF's SCSPTR2 register.
16.1.4

Register Configuration

The SCIF has the internal registers shown in table 16.2. These registers are used to specify the
data format and bit rate, and to perform transmitter/receiver control.

Table 16.2 SCIF Registers

Name
Serial mode register
Bit rate register
Serial control register
Transmit FIFO data register SCFTDR2 W
Serial status register
Receive FIFO data register SCFRDR2 R
FIFO control register
FIFO data count register
Serial port register
Line status register
Notes: *1 Only 0 can be written, to clear flags. Bits 15 to 8, 3, and 2 are read-only, and cannot be
modified.
*2 The value of bits 6, 4, 2, and 0 is undefined.
*3 Only 0 can be written, to clear flags. Bits 15 to 1 are read-only, and cannot be modified.
Rev. 3.0, 04/02, page 636 of 1064
Abbreviation I/O
MD0/SCK2 I/O
MD2/RxD2 Input
MD1/TxD2 Output


MD7/ I/O

MD8/ I/O
Abbrevia-
tion R/W
SCSMR2 R/W
SCBRR2 R/W
SCSCR2 R/W
SCFSR2 R/(W)*
SCFCR2 R/W
SCFDR2 R
SCSPTR2 R/W
SCLSR2 R/(W)*
Function
Clock input/output
Receive data input
Transmit data output
Transmission enabled
Transmission request
Initial P4
Value Address
H'0000 H'FFE80000 H'IFE80000 16
H'FF H'FFE80004 H'IFE80004 8
H'0000 H'FFE80008 H'IFE80008 16
Undefined H'FFE8000C H'IFE8000C 8
1
H'0060 H'FFE80010 H'IFE80010 16
Undefined H'FFE80014 H'IFE80014 8
H'0000 H'FFE80018 H'IFE80018 16
H'0000 H'FFE8001C H'IFE8001C 16
2
H'0000* H'FFE80020 H'IFE80020 16
3
H'0000 H'FFE80024 H'IFE80024 16
Area 7 Access
Address Size