HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 429
HD6477021X20V
Manufacturer Part Number
HD6477021X20V
Description
MCU 5V 32K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6477021X20V
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 Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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14.3.5
CASCR is a 16-bit read/write register that allows selection between column address strobe and
chip select pin functions. The CASCR is initialized to H'5FFF by power-on resets but is not
initialized for manual resets, standby mode, or sleep mode.
•
Bit 15: CASHMD1
0
1
•
Bit 13: CASLMD1
0
1
•
Bits 15 and 14 (CASH mode (CASHMD1 and CASHMD0)): CASHMD1 and CASHMD0
select the function of the CS1/CASH pin.
Bits 13 and 12 (CASL mode (CASLMD1 and CASLMD0)): CASLMD1 and CASLMD0
select the function of the CS3/CASL pin.
Bits 11–0 (reserved): This bit always reads as 1. The write value should always be 1.
Initial value:
Initial value:
Bit name:
Bit name:
Column Address Strobe Pin Control Register (CASCR)
R/W:
R/W:
Bit:
Bit:
CASH
MD1
R/W
Bit 14: CASHMD0
0
1
0
1
Bit 12: CASLMD0
0
1
0
1
15
—
—
0
7
1
CASH
MD0
R/W
14
—
—
1
6
1
CASL
MD1
R/W
13
—
—
0
5
1
Function
Reserved
Chip select output (CS1) (initial value)
Column address strobe output (CASH)
Reserved
Function
Reserved
Chip select output (CS3) (initial value)
Column address strobe output (CASL)
Reserved
CASL
MD0
R/W
12
—
—
1
4
1
11
—
—
—
—
1
3
1
10
—
—
—
—
1
2
1
—
—
—
—
RENESAS 413
9
1
1
1
—
—
—
—
8
1
0
1
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