HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 505
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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Manufacturer
Quantity
Price
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Part Number:
HD64F2638F20J
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Bits 1 and 0—Clock Select 1 and 0 (CKS1, CKS0): These bits select the clock source for the
baud rate generator. The clock source can be selected from φ, φ/4, φ/16, and φ/64, according to the
setting of bits CKS1 and CKS0.
For the relation between the clock source, the bit rate register setting, and the baud rate, see
section 13.2.8, Bit Rate Register (BRR).
Bit 1
CKS1
0
1
13.2.6
SCR is a register that performs enabling or disabling of SCI transfer operations, serial clock output
in asynchronous mode, and interrupt requests, and selection of the serial clock source.
SCR can be read or written to by the CPU at all times.
SCR is initialized to H'00 by a reset and in standby mode.
Bit 7—Transmit Interrupt Enable (TIE): Enables or disables transmit data empty interrupt
(TXI) request generation when serial transmit data is transferred from TDR to TSR and the TDRE
flag in SSR is set to 1.
Bit 7
TIE
0
1
Note:* TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Bit
Initial value
R/W
clearing it to 0, or clearing the TIE bit to 0.
Serial Control Register (SCR)
Bit 0
CKS0
0
1
0
1
Description
Transmit data empty interrupt (TXI) requests disabled*
Transmit data empty interrupt (TXI) requests enabled
:
:
:
R/W
TIE
7
0
Description
φ clock
φ/4 clock
φ/16 clock
φ/64 clock
R/W
RIE
6
0
R/W
TE
5
0
R/W
RE
4
0
MPIE
R/W
Section 13 Serial Communication Interface (SCI)
3
0
TEIE
R/W
2
0
CKE1
R/W
1
0
(Initial value)
(Initial value)
Page 455 of 1458
CKE0
R/W
0
0
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