HD64F3642AH Renesas Electronics America, HD64F3642AH Datasheet - Page 316
HD64F3642AH
Manufacturer Part Number
HD64F3642AH
Description
IC H8 MCU FLASH 16K 64QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD64F3644HV.pdf
(551 pages)
Specifications of HD64F3642AH
Core Processor
H8/300L
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
PWM, WDT
Number Of I /o
53
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 10 Serial Communication Interface
Transmit Data Register (TDR)
TDR is an 8-bit register that stores transmit data. When TSR is found to be empty, the transmit
data written in TDR is transferred to TSR, and serial data transmission is started. Continuous
transmission is possible by writing the next transmit data to TDR during TSR serial data
transmission.
TDR can be read or written by the CPU at any time.
TDR is initialized to H'FF upon reset, and in standby, watch, subactive, or subsleep mode.
Serial Mode Register (SMR)
SMR is an 8-bit register used to set the serial data transfer format and to select the clock source for
the baud rate generator.
SMR can be read or written by the CPU at any time.
SMR is initialized to H'00 upon reset, and in standby, watch, subactive, or subsleep mode.
Bit 7 Communication Mode (COM): Bit 7 selects whether SCI3 operates in asynchronous
mode or synchronous mode.
Bit 7: COM
0
1
Rev. 6.00 Sep 12, 2006 page 294 of 526
REJ09B0326-0600
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
TDR7
COM
R/W
R/W
Description
Asynchronous mode
Synchronous mode
7
1
7
0
TDR6
CHR
R/W
R/W
1
0
6
6
TDR5
R/W
R/W
PE
5
1
5
0
TDR4
R/W
R/W
PM
4
1
4
0
STOP
TDR3
R/W
R/W
3
1
3
0
TDR2
R/W
R/W
MP
2
1
2
0
TDR1
CKS1
R/W
R/W
1
1
1
0
(initial value)
TDR0
CKS0
R/W
R/W
0
1
0
0
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