HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 445
HD6417720BP133BV
Manufacturer Part Number
HD6417720BP133BV
Description
SH3-DSP, WITH USB AND LCDC, PB-F
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.R8A77210C133BAV.pdf
(1478 pages)
Specifications of HD6417720BP133BV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
133MHz
Connectivity
FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
117
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
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SH7720 Group, SH7721 Group
9.5.6
The burst ROM (clock asynchronous) interface is used to access a memory with a high-speed read
function using a method of address switching called the burst mode or page mode. In a burst ROM
(clock asynchronous) interface, basically the same access as the normal space is performed, but
the 2nd and subsequent accesses are performed only by changing the address, without negating the
RD signal at the end of the 1st cycle. In the 2nd and subsequent accesses, addresses are changed at
the falling edge of the CKIO.
For the 1st access cycle, the number of wait cycles specified by the W[3:0] bits in CSnWCR is
inserted. For the 2nd and subsequent access cycles, the number of wait cycles specified by the
BW[1:0] bits in CSnWCR is inserted.
In the access to the burst ROM (clock asynchronous), the BS signal is asserted only to the first
access cycle. An external wait input is valid only to the first access cycle.
In the single access or write access that do not perform the burst operation in the burst ROM
(clock asynchronous) interface, access timing is same as a normal space.
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
Burst ROM (Clock Asynchronous) Interface
A12/A11*
A25 to A0
D31 to D0
DACKn*
DQMxx
RD/WR
CKIO
CKE
RAS
CAS
CSn
BS
Figure 9.30 Transition Timing in Deep Power-Down Mode
1
2
Notes:
1. Address pin to be connected to the A10 pin of SDRAM.
2. The waveform for DACKn is when active low is specified.
Tp
Tpw
Tdpd
Trc
Trc
Hi-Z
Trc
Section 9 Bus State Controller (BSC)
Trc
Trc
Page 385 of 1414
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