DF2134AFA20V Renesas Electronics America, DF2134AFA20V Datasheet - Page 593
![IC H8S/2100 MCU FLASH 80QFP](/photos/12/21/122132/df2134afa20v_sml.jpg)
DF2134AFA20V
Manufacturer Part Number
DF2134AFA20V
Description
IC H8S/2100 MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.DF2134AFA20V.pdf
(1063 pages)
Specifications of DF2134AFA20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
58
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
80-QFP
For Use With
3DK2166 - DEV EVAL KIT H8S/2166
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2134AFA20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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- Download datasheet (6Mb)
Table 17.6 Host Interface Operation
17.3.3
The A20 gate signal can mask address A20 to emulate an addressing mode used by personal
computers with an 8086 * -family CPU. In slave mode, a regular-speed A20 gate signal can be
output under firmware control, or a fast A20 gate signal can be output under hardware control.
Fast A20 gate output is enabled by setting the FGA20E bit (bit 0) to 1 in HICR (H'FFF0).
Note: * Intel microprocessor.
Regular A20 Gate Operation: Output of the A20 gate signal can be controlled by an H'D1
command followed by data. When the slave processor receives data, it normally uses an interrupt
routine activated by the IBF1 interrupt to read IDR1. If the data follows an H'D1 command,
software copies bit 1 of the data and outputs it at the gate A20 pin.
Fast A20 Gate Operation: When the FGA20E bit is set to 1, P81/GA20 is used for output of a
fast A20 gate signal. Bit P81DDR must be set to 1 to assign this pin for output. The initial output
from this pin will be a logic 1, which is the initial value. Afterward, the host processor can
manipulate the output from this pin by sending commands and data. This function is available
CS2
CS2
CS2
CS2
1
0
CS1
CS1
0
1
CS1
CS1
A20 Gate
IOR
IOR
IOR
IOR
0
1
0
1
IOW
IOW
IOW
IOW
0
1
0
1
0
1
0
1
HA0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Operation
Setting prohibited
Setting prohibited
Data read from output data register 1 (ODR1)
Status read from status register 1 (STR1)
Data write to input data register 1 (IDR1)
Command write to input data register 1 (IDR1)
Idle state
Idle state
Setting prohibited
Setting prohibited
Data read from output data register 2 (ODR2)
Status read from status register 2 (STR2)
Data write to input data register 2 (IDR2)
Command write to input data register 2 (IDR2)
Idle state
Idle state
Section 17 Host Interface [H8S/2138 Group]
Rev. 4.00 Jun 06, 2006 page 537 of 1004
REJ09B0301-0400
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