HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 214

• Manufacturer Part Number: HD6417706F133
• Description: IC SUPERH MPU ROMLESS 176LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417706F133

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.75 V ~ 2.05 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 8 Bus State Controller (BSC)
Rev. 5.00 May 29, 2006 page 164 of 698
REJ09B0146-0500
Refresh function
The refresh counter can be used as an interval timer
Bus sizing function for I/O bus width (only in the little endian mode)
Refresh cycles will be automatically maintained in the sleep mode even after the external
bus frequency is reduced to 1/4 of its normal operating frequency
Outputs an interrupt request signal using the compare-matching function
Outputs an interrupt request signal when the refresh counter overflows
CS0, CS6 to CS2,
ICIORD, ICIOWR
Legend:
WCR
BCR
MCR
PCR
controller
Interrupt
CE2A, CE2B
WE3 to WE0
: Wait state control register
: Bus control register
: Memory control register
: PCMCIA control register
RD/WR
IOIS16
RASx
CASx
WAIT
CKE
RD
BS
Figure 8.1 BSC Functional Block Diagram
controller
controller
controller
controller
Memory
Refresh
Wait
Area
RFCR
RTCNT
RTCOR
RTCSR
: Refresh count register
: Refresh timer count register
: Refresh time constant register
: Refresh timer control/status register
Comparator
RTCOR
RTCNT
RTCSR
WCR1
WCR2
RFCR
BCR1
BCR2
MCR
PCR
interface
Bus
BSC