HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 180

• Manufacturer Part Number: HD6473258P10
• Description: IC H8 MCU OTP 32K 64DIP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473258P10

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-DIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

9.2.5 Serial Mode Register (SMR) – H’FFD8
Bit
Initial value
Read/Write
The SMR is an 8-bit readable/writable register that controls the communication format and selects
the clock rate for the internal clock source. It is initialized to H’04 at a reset and in the standby
modes.
For further information on communication formats, see tables 9-5 and 9-7 section 9.3, Operation.
Bit 7 – Communication Mode (C/A): This bit selects the asynchronous or synchronous
communication mode.
Bit 7
C/A
Bit 6 – Character Length (CHR): This bit selects the character length in asynchronous mode. It
is ignored in synchronous mode.
Bit 6
CHR Description
Bit 5 – Parity Enable (PE): This bit selects whether to add a parity bit in asynchronous mode. It
is ignored in synchronous mode.
Bit 5
PE
0
1
0
1
0
1
8 Bits per character.
7 Bits per character.
Description
Transmit: No parity bit is added.
Receive: Parity is not checked.
Transmit: A parity bit is added.
Receive: Parity is checked.
Description
Asynchronous communication.
Clock-synchronized communication.
R/W
C/A
7
0
CHR
R/W
6
0
R/W
PE
5
0
173
R/W
O/E
4
0
STOP
R/W
3
0
—
—
2
1
CKS1
R/W
1
0
(Initial value)
(Initial value)
(Initial value)
CKS0
R/W
0
0