HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 266
HD6475328-CP10
Manufacturer Part Number
HD6475328-CP10
Description
original Hitachi CMOS microcomputer unit (MCU)
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HD6475328-CP10.pdf
(459 pages)
- Current page: 266 of 459
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Bit
Initial value
Read/Write
14.2.6 Serial Control Register (SCR)—H'FFDA
The SCR is an 8-bit readable/writable register that enables or disables various SCI functions. It is
initialized to H'0C at a reset and in the standby modes.
Bit 7—Transmit Interrupt Enable (TIE): This bit enables or disables the transmit-end interrupt
(TXI) requested when the transmit data register empty (TDRE) bit in the serial status register
(SSR) is set to 1.
Bit 7
TIE
0
1
Bit 6—Receive Interrupt Enable (RIE): This bit enables or disables the receive-end interrupt
(RXI) requested when the receive data register full (RDRF) bit in the serial status register (SSR) is
set to 1. It also enables and disables the receive-error interrupt (ERI) request.
Bit 6
RIE
0
1
Bit 5—Transmit Enable (TE): This bit enables or disables the transmit function. When the
transmit function is enabled, the TXD pin is automatically used for output. When the transmit
function is disabled, the TXD pin can be used as a general-purpose I/O port.
Bit 5
TE
0
1
Description
The transmit-end interrupt request (TXI) is disabled.
The transmit-end interrupt request (TXI) is enabled.
Description
The receive-end interrupt (RXI) and receive-error interrupt (ERI)
requests are disabled.
The receive-end interrupt (RXI) and receive-error interrupt (ERI) requests are enabled.
Description
The transmit function is disabled. The TXD pin can be
used as a general-purpose I/O port.
The transmit function is enabled. The TXD pin is used for output.
R/W
TIE
7
0
R/W
RIE
6
0
R/W
TE
5
0
251
R/W
RE
4
0
—
—
3
1
—
—
2
1
CKE1
(Initial value)
(Initial value)
(Initial value)
R/W
1
0
CKE0
R/W
0
0
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