HD6417750SBP200 Renesas Electronics America, HD6417750SBP200 Datasheet - Page 487
HD6417750SBP200
Manufacturer Part Number
HD6417750SBP200
Description
IC SUPERH MPU ROMLESS 256BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750SBP200
Core Processor
SH-4
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
28
Program Memory Type
ROMless
Ram Size
24K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 2.07 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD6417750SBP200
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 487 of 1164
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13.2.8
The memory control register (MCR) is a 32-bit readable/writable register that specifies RAS and
CAS timing and burst control for DRAM and synchronous DRAM (areas 2 and 3), address
multiplexing, and refresh control. This enables DRAM and synchronous DRAM to be connected
without using external circuitry.
MCR is initialized to H'00000000 by a power-on reset, but is not initialized by a manual reset or in
standby mode. Bits RASD, MRSET, TRC2–0, TPC2–0, RCD1–0, TRWL2–0, TRAS2–0, BE,
SZ1–0, AMXEXT, AMX2–0, and EDOMODE are written in the initialization following a power-
on reset, and should not be modified subsequently. When writing to bits RFSH and RMODE, the
same values should be written to the other bits so that they remain unchanged. When using DRAM
or synchronous DRAM, areas 2 and 3 should not be accessed until register initialization is
completed.
Initial value:
Initial value:
Initial value:
Initial value:
Memory Control Register (MCR)
R/W:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
Bit:
TRWL2 TRWL1 TRWL0
RASD
TCAS
R/W
R/W
R/W
R/W
SZ0
31
23
15
0
0
0
7
0
AMXEXT AMX2
MRSET
R/W
R/W
R/W
30
22
14
—
R
0
0
0
6
0
TRC2
TPC2
R/W
R/W
R/W
R/W
29
21
13
0
0
0
5
0
TRAS2
AMX1
TRC1
TPC1
R/W
R/W
R/W
R/W
28
20
12
0
0
0
4
0
Rev.7.00 Oct. 10, 2008 Page 401 of 1074
Section 13 Bus State Controller (BSC)
TRAS1
AMX0
TRC0
TPC0
R/W
R/W
R/W
R/W
27
19
11
0
0
0
3
0
TRAS0
RFSH
R/W
R/W
26
18
10
—
—
R
R
0
0
0
2
0
REJ09B0366-0700
RMODE
RCD1
R/W
R/W
R/W
BE
25
17
—
R
0
0
9
0
1
0
MODE
RCD0
EDO
R/W
SZ1
R/W
R/W
24
16
—
R
0
0
8
0
0
0
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