HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 492

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 12 Bus State Controller (BSC)
Basic Timing for Memory Card Interface: Figure 12.39 shows the basic timing of the PCMCIA
IC memory card interface. If areas 5 and 6 in the physical space are specified as the PCMCIA
interface, accessing the common memory areas in areas 5 and 6 automatically accesses the IC
memory card interface. If the external bus frequency (CKIO) increases, the setup times and hold
times for the address pins (A25 to A0) to RD and WE, card enable signals (CE1A, CE2A, CE1B,
CE2B), and write data (D15 to D0) become insufficient. To prevent this error, the LSI can specify
the setup times and hold times for areas 5 and 6 in the physical space independently, using
CS5BWCR and CS6BWCR. In the PCMCIA interface, as in the normal space interface, a
software wait or hardware wait can be inserted using the WAIT pin. Figure 12.40 shows the
PCMCIA memory bus wait timing.
Rev. 1.00 Dec. 27, 2005 Page 448 of 932
REJ09B0269-0100
This LSI
D15 to D8
A25 to A0
D7 to D0
ICIOWR
ICIORD
Figure 12.38 Example of PCMCIA Interface Connection
I/O Port
RD/WR
IOIS16
CE1A
CE2A
WAIT
WE
RD
DIR
DIR
G
G
G
G
detection
Card
circuit
A25 to A0
D7 to D0
D15 to D8
CE1
CE2
OE
WE/PGM
IORD
IOWR
REG
WAIT
IOIS16
CD1,CD2
(memory I/O)
PC card