D12350F20IV Renesas Electronics America, D12350F20IV Datasheet - Page 161
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D12350F20IV
Manufacturer Part Number
D12350F20IV
Description
IC H8S/2350 MCU 4.5/5.5V 0+K I-T
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12350F20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Type
ROMless
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12350F20IV
Manufacturer:
INF
Quantity:
4 834
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6.1.4
Table 6.2 summarizes the registers of the bus controller.
Table 6.2
Notes: 1. Lower 16 bits of the address.
Name
Chip select 7
Upper column address strobe CAS
Lower column strobe
Wait
Bus request
Bus request acknowledge
Bus request output
Name
Bus width control register
Access state control register
Wait control register H
Wait control register L
Bus control register H
Bus control register L
Memory control register
DRAM control register
Refresh timer/counter
Refresh time constant register
2. Determined by the MCU operating mode.
Register Configuration
Bus Controller Registers
Symbol
CS7
LCAS
WAIT
BREQ
BACK
BREQO
ABWCR
ASTCR
WCRH
BCRH
RTCOR
Abbreviation
WCRL
BCRL
MCR
DRAMCR
RTCNT
I/O
Output
Output
Output
Input
Input
Output
Output
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
Strobe signal indicating that area 7 is
selected.
2-CAS DRAM upper column address
strobe signal.
DRAM lower column address strobe signal.
Wait request signal when accessing
external 3-state access space.
Request signal that releases bus to
external device.
Acknowledge signal indicating that bus has
been released.
External bus request signal used when
internal bus master accesses external
space when external bus is released.
Rev. 3.00 Sep 15, 2006 page 125 of 988
Power-On
Reset
H'FF/H'00 *
H'FF
H'FF
H'FF
H'D0
H'3C
H'00
H'00
H'00
H'FF
Initial Value
2
Section 6 Bus Controller
Manual
Reset
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
REJ09B0330-0300
Address *
H'FED0
H'FED1
H'FED2
H'FED3
H'FED4
H'FED5
H'FED6
H'FED7
H'FED8
H'FED9
1
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