HD6417020SX20IV Renesas Electronics America, HD6417020SX20IV Datasheet - Page 142

• Manufacturer Part Number: HD6417020SX20IV
• Description: SH 1 CORE 32B MPU, 20MHZ/5V, 100
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6417020SX20IV

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

set to 1 to use the address multiplex function, bits A23–A0 are multiplexed and output from pins
A15–A0, so a maximum 16-Mbyte space can be used. When DRAM space is accessed, the CS1
signal is not valid and the pin function controller should be set for access with CAS (CASH and
CASL) and RAS signals.
Areas 2–4: Areas 2–4 are the areas where addresses A26–A24 are 010, 011 and 100, respectively,
and their address ranges are H'2000000–H'2FFFFFF and H'A000000–H'AFFFFFF (area 2),
H'3000000–H'3FFFFFF and H'B000000–H'BFFFFFF (area 3), and H'4000000–H'4FFFFFF and
H'C000000–H'CFFFFFF (area 4). Figure 8.7 is a memory map of area 2, which is representative
of areas 2–4.
122 RENESAS
H'9BFFFFF
H'9FFFFFF
H'93FFFFF
H'97FFFFF
H'9C00000
H'9000000
H'9400000
H'9800000
16-bit space
H'1FFFFFF
DRAME = 0 or DRAME = 1, MXE = 0
H'1BFFFFF
H'13FFFFF
H'17FFFFF
H'1C00000
H'1000000
H'1400000
H'1800000
Logical address space
A27 = 1:
8-bit space
A27 = 0:
Shadow
Shadow
Shadow
Shadow
Figure 8.6 Memory Map of Area 1
• Valid
• CS1
Actual space
(4 Mbytes)
address
A21–A0
(A23 and
A22 not
output)
valid
External
memory
space
H'9FFFFFF
H'9000000
H'1FFFFFF
16-bit space
H'1000000
A27 = 1:
Logical address space
8-bit space
A27 = 0:
DRAME = 1
Shadow
• Multiplexed
• Not multi-
• CS1 not
Actual space
(MXE = 1):
16-bit space
plexed
(MXE = 0):
4 Mbyte
space
valid (CAS,
RAS output)
16 Mbytes)
(maximum
DRAM
space