HD64F2318VTE25 Renesas Electronics America, HD64F2318VTE25 Datasheet - Page 178
![IC H8S MCU FLASH 256K 100-QFP](/photos/12/40/124081/hd64f2318vte25_sml.jpg)
HD64F2318VTE25
Manufacturer Part Number
HD64F2318VTE25
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of HD64F2318VTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
71
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 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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Section 6 Bus Controller
6.2.2
ASTCR is an 8-bit readable/writable register that designates each area as either a 2-state access
space or a 3-state access space.
ASTCR sets the number of access states for the external memory space. The number of access
states for on-chip memory and internal I/O registers is fixed regardless of the settings in ASTCR.
ASTCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Area 7 to 0 Access State Control (AST7 to AST0): These bits select whether the
corresponding area is to be designated as a 2-state access space or a 3-state access space.
Wait state insertion is enabled or disabled at the same time.
Bit n
ASTn
0
1
Rev.7.00 Feb. 14, 2007 page 144 of 1108
REJ09B0089-0700
Bit
Initial value :
R/W
Access State Control Register (ASTCR)
Description
Area n is designated for 2-state access
Wait state insertion in area n external space is disabled
Area n is designated for 3-state access
Wait state insertion in area n external space is enabled
:
:
AST7
R/W
7
1
AST6
R/W
6
1
AST5
R/W
5
1
AST4
R/W
4
1
AST3
R/W
3
1
AST2
R/W
2
1
AST1
R/W
1
1
(Initial value)
(n = 7 to 0)
AST0
R/W
0
1
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