HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 868
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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Section 21B ROM
(H8S/2638 Group, H8S/2639 Group, H8S/2630 Group)
21B.8.1 Boot Mode
When boot mode is used, the flash memory programming control program must be prepared in the
host beforehand. The SCI channel to be used is set to asynchronous mode.
When a reset-start is executed after the H8S/2638’, H8S/2639’, and H8S/2630’ pins have been set
to boot mode, the boot program built into the H8S/2638, H8S/2639, and H8S/2630 are started and
the programming control program prepared in the host is serially transmitted to the H8S/2638,
H8S/2639, and H8S/2630 via the SCI. In the H8S/2638, H8S/2639, and H8S/2630, the
programming control program received via the SCI is written into the programming control
program area in on-chip RAM. After the transfer is completed, control branches to the start
address of the programming control program area and the programming control program execution
state is entered (flash memory programming is performed).
The transferred programming control program must therefore include coding that follows the
programming algorithm given later.
The system configuration in boot mode is shown in figure 21B-7, and the boot mode execution
procedure in figure 21B-8.
Page 818 of 1458
Host
Figure 21B-7 System Configuration in Boot Mode
Verify data transmission
Write data reception
RxD1
TxD1
SCI1
H8S/2639, H8S/2638, H8S/2636,
LSI
Flash memory
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
On-chip RAM
May 28, 2010
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