DF2505FC26V Renesas Electronics America, DF2505FC26V Datasheet - Page 173
DF2505FC26V
Manufacturer Part Number
DF2505FC26V
Description
IC H8S/2505 MCU FLASH 144QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2500r
Specifications of DF2505FC26V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
26MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
104
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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7.2
Table 7.1 summarizes the pins of the bus controller.
Table 7.1
Note:
7.3
The bus controller has the following registers.
• Bus width control register (ABWCR)
• Access state control register (ASTCR)
• Wait control register H (WCRH)
• Wait control register L (WCRL)
• Bus control register H (BCRH)
• Bus control register L (BCRL)
• Pin function control register (PFCR)
Name
Address strove
Read
High write
Low write
Chip select 0 to 7 CS0 to CS7*
Wait
Bus mastership
request
Bus mastership
request
acknowledge
*
Input/Output Pins
Register Descriptions
CS1 and CS2 are not provided in the H8S/2556 Group.
Pin Configuration
Symbol
AS
RD
HWR
LWR
WAIT
BREQ
BACK
I/O
Output Strobe signal indicating that address output on
Output Strobe signal indicating that external address space is
Output Strobe signal indicating that external address space is
Output Strobe signal indicating that external address space is
Output Strobe signal indicating that areas 0 to 7 are selected.
Input
Input
Output Acknowledge signal indicating that bus has been
Function
address bus is enabled.
being read.
to be written, and upper half (D15 to D8) of data bus is
enabled.
to be written, and lower half (D7 to D0) of data bus is
enabled.
Wait request signal when accessing external 3-state
access space.
Request signal that releases bus to external device.
released.
Rev. 6.00 Sep. 24, 2009 Page 125 of 928
Section 7 Bus Controller
REJ09B0099-0600
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