D12350F20IV Renesas Electronics America, D12350F20IV Datasheet - Page 173

• 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: -

Bit 4—2-CAS Method Select (CW2): Write 1 to this bit when areas 2 to 5 are designated as 8-bit
DRAM space, and 0 otherwise.
Bits 3 and 2—Multiplex Shift Count 1 and 0 (MXC1, MXC0): These bits select the size of the
shift to the lower half of the row address in row address/column address multiplexing for the
DRAM interface. In burst operation on the DRAM interface, these bits also select the row address
to be used for comparison.
Bit 5
RCDM
0
1
Bit 4
CW2
0
1
Bit 3
MXC1
0
1
Description
DRAM interface: RAS up mode selected
DRAM interface: RAS down mode selected
Description
16-bit DRAM space selected
8-bit DRAM space selected
Bit 2
MXC0
0
1
0
1
Description
8-bit shift
9-bit shift
10-bit shift
—
When 8-bit access space is designated: Row address A
for comparison
When 16-bit access space is designated: Row address A
for comparison
When 8-bit access space is designated: Row address A
for comparison
When 16-bit access space is designated: Row address A
for comparison
for comparison
When 16-bit access space is designated: Row address A
for comparison
When 8-bit access space is designated: Row address A
Rev. 3.00 Sep 15, 2006 page 137 of 988
Section 6 Bus Controller
REJ09B0330-0300
23
23
23
23
23
(Initial value)
(Initial value)
23
(Initial value)
to A
to A
to A
to A
to A
to A
8
9
10
10
11
9
used
used
used
used
used
used