HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 571
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Bit
0
Bit Name
FGA20E
Initial
Value
0
Slave
R/W
R/W
Host
Section 18 Host Interface X-Bus Interface (XBS)
Description
Fast A20 Gate Function Enable
When P81DDR=0:
0: XBS fast A20 gate function disabled
1: Setting prohibited
When P81DDR=1:
0: XBS fast A20 gate function disabled
1: XBS fast A20 gate function enabled
When the fast A20 gate is disabled, the normal
A20 gate can be implemented by the firmware
operation of the P81 output.
When the host interface (XBS) fast A20 gate
function is enabled, the DDR bit for P81 must be
set to 1. Therefore, the state of the P81/GA20 pin
cannot be monitored by reading the DR bit for
P81.
A fast A20 gate function is also provided in the
LPC. The state of the P81/GA20 pin can be
monitored by reading the LPC’s GA20 bit.
Rev. 3.00 Mar 21, 2006 page 515 of 788
REJ09B0300-0300
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