HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 390
![SH3-DSP, WITH USB AND LCDC, PB-F](/photos/28/61/286175/256-lfbga_sml.jpg)
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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Section 9 Bus State Controller (BSC)
9.4.7
RTCOR is an 8-bit register. When RTCOR matches RTCNT, the CMF bit in RTCSR is set to 1
and RTCNT is cleared to 0.
When the RFSH bit in SDCR is 1, a memory refresh request is issued by this matching signal.
This request is maintained until the refresh operation is performed. If the request is not processed
when the next matching occurs, the previous request is ignored.
If the CMIE bit of the RTCSR is set to 1, an interrupt is requested by this matching signal. This
request is maintained until the CMF bit in RTCSR is cleared to 0. Clearing the CMF bit in RTCSR
affects only interrupts and does not affect refresh requests. This makes it possible to count the
number of refresh requests during refresh by interrupts, and to specify the refresh and interval
timer interrupts simultaneously. When the RTCOR is written, the upper 16 bits of the write data
must be H'A55A to cancel write protection.
9.4.8
For the settings of SDRAM mode registers (SDMR2 and SDMR3), see table 9.19.
Page 330 of 1414
Bit
31 to 8 ⎯
7 to 0
Bit Name
⎯
Refresh Time Constant Register (RTCOR)
SDRAM Mode Registers 2, 3 (SDMR2 and SRMR3)
Initial
Value
All 0
All 0
R/W
R
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be H'A55A00.
8-bit Counter
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
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