R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 411
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
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:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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11.4.3
CSnBCR is a 32-bit readable/writable register that specifies the bus width for area n (n = 0 to 2
and 4 to 6), numbers of wait, setup, and hold cycles to be inserted, burst length, and memory
types.
Some types of memory continue to drive the data bus immediately after the read signal is
inactivated. Therefore, a data bus collision may occur when there is consecutive memory access to
different areas or writing to a memory immediately after reading. This LSI automatically inserts
the number of idle cycles set by CSnBCR to prevent data bus collision. During idle cycles,
corresponding signals CS0 to CS2, CS4, CS5/CE1A, CS6/CE1B, RD, WE, CE2A, CE2B, and BS
are not asserted and RDWR is in the high state and the data is not driven.
CSnBCR is initialized to H'7777 7770 by a power-on reset or a manual reset.
Initial value:
Initial value:
Note: * The SZ and MPX bits in CS0BCR are read-only.
Bit
31
R/W:
R/W:
Bit:
Bit:
CSn Bus Control Register (CSnBCR)
Bit Name
31
−
15
−
R
R
0
0
R/W
R/W
30
14
1
1
IWRRS
IWW
R/W
R/W
Initial
Value
0
29
13
1
1
R/W
R/W
28
12
1
1
R/W
R
R/W
27
−
11
R
0
0
BST
R/W
R/W
26
10
1
1
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
IWRWD
R/W*
R/W
25
1
9
1
SZ
R/W*
R/W
24
1
8
1
RDSPL
R/W
23
−
R
0
7
0
Section 11 Local Bus State Controller (LBSC)
Rev. 2.00 May 22, 2009 Page 341 of 1982
R/W
R/W
22
1
6
1
IWRWS
R/W
R/W
BW
21
1
5
1
R/W
R/W
20
1
4
1
R/W*
MPX
19
−
R
0
3
0
REJ09B0256-0200
R/W
R/W
18
1
2
0
IWRRD
TYPE
R/W
R/W
17
1
1
0
R/W
R/W
16
1
0
0
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