HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 148
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 3 DSP Operating Unit
Before entering the exception handling state, all bits including the DSP extension bits of the SR
registers are saved in the SSR. Before returning from the exception handling, all bits including the
DSP extension bits of the SR must be restored. If the repeat control must be recovered before
entering the exception handling state, the RS and RE registers must be recovered to the value that
existed before exception handling. In addition, if it is necessary to recover modulo control before
entering the exception handling state, the MOD register must be recovered to the value that
existed before exception handling.
3.2.4
The DSP unit incorporates eight data registers (A0, A1, X0, X1, Y0, Y1, M0, and M1) and a status
register (DSR). Figure 3.3 shows the DSP register configuration. These are 32-bit width registers
with the exception of registers A0 and A1. Registers A0 and A1 include 8 guard bits (fields A0G
and A1G), giving them a total width of 40 bits. The DSR register stores the DSP data operation
result (zero, negative, others). The DSP register has a DC bit whose function is similar to the T bit
in the CPU register. For details on DSR bits, refer to section 3.5, DSP Data Operation Instructions.
Page 88 of 1414
DSP Registers
31
39
A0G
A1G
32 31
Figure 3.3 DSP Register Configuration
(a) DSP data registers
................
A0
A1
M0
M1
X0
X1
Y0
Y1
(b) DSP status register (DSR)
0
8
GT
7
6
Z
Initial value
DSR : All 0
Others: Undefined
N
5
4
V
3
CS[2:0]
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
1
DC
0
Sep 21, 2010
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