R8A77850ADBGV Renesas Electronics America, R8A77850ADBGV Datasheet - Page 439

• Manufacturer Part Number: R8A77850ADBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ADBGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

(2)
Wait cycle insertion for the SRAM interface can be controlled by CSnWCR. If the IW bits in
CSnWCR are set to a value other than 0, a software wait is inserted in accordance with the wait
control bits. For details, see section 11.4.4, CSn Wait Control Register (CSnWCR).
The specified number of Tw cycles is inserted as wait cycles in accordance with the CSnWCR
setting. The wait cycle insertion timing is shown in figure 11.9.
Wait Cycle Control
SH7785
Figure 11.8 Example of 8-Bit Data Width SRAM Connection
WE0
CSn
A16
RD
A0
D7
D0
Rev.1.00 Jan. 10, 2008 Page 407 of 1658
11. Local Bus State Controller (LBSC)
128K × 8 bits
A16
A0
CS
OE
I/O7
I/O0
WE
SRAM
REJ09B0261-0100