HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 509
HD64F2638F20J
Manufacturer Part Number
HD64F2638F20J
Description
IC H8S MCU FLASH 256K 128-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2638F20J
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SmartCard
Peripherals
Motor Control PWM, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
13.2.7
Note: * Only 0 can be written, to clear the flag.
SSR is an 8-bit register containing status flags that indicate the operating status of the SCI, and
multiprocessor bits.
SSR can be read or written to by the CPU at all times. However, 1 cannot be written to flags
TDRE, RDRF, ORER, PER, and FER. Also note that in order to clear these flags they must be
read as 1 beforehand. The TEND flag and MPB flag are read-only flags and cannot be modified.
SSR is initialized to H'84 by a reset, in standby mode, watch mode * , subactive mode * , and
subsleep mode * or module stop mode.
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
Bit 7—Transmit Data Register Empty (TDRE): Indicates that data has been transferred from
TDR to TSR and the next serial data can be written to TDR.
Bit 7
TDRE
0
1
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Bit
Initial value
R/W
U-mask and W-mask versions, and H8S/2635 Group only.
These functions cannot be used with the other versions.
Serial Status Register (SSR)
Description
[Clearing conditions]
•
•
[Setting conditions]
•
•
:
:
:
When 0 is written to TDRE after reading TDRE = 1
When the DTC is activated by a TXI interrupt and writes data to TDR
When the TE bit in SCR is 0
When data is transferred from TDR to TSR and data can be written to TDR
R/(W)*
TDRE
7
1
R/(W)*
RDRF
6
0
R/(W)*
ORER
5
0
R/(W)*
FER
4
0
R/(W)*
PER
Section 13 Serial Communication Interface (SCI)
3
0
TEND
R
2
1
MPB
R
1
0
(Initial value)
Page 459 of 1458
MPBT
R/W
0
0
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