R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 1190

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 30 User Debugging Interface (H-UDI)
The TCK clock or the CPG of this LSI should be set to ensure that the frequency of the TCK clock
is less than the peripheral-clock frequency of this LSI.
30.3
The H-UDI contains two separate TAP controllers: one for controlling the boundary-scan function
and another for controlling the H-UDI reset and interrupt functions. Assertion of TRST, for
example at power-on reset, activates the boundary-scan TAP controller and enables the boundary-
scan function prescribed in the JTAG standards. Executing a switchover command to the H-UDI
allows usage of the H-UDI reset and H-UDI interrupts. This LSI, however, has the following
limitations:
• Clock-related pins (EXTAL, XTAL, EXTAL2, and XTAL2) are out of the scope of the
• Reset-related pin (PRESET) is out of the scope of the boundary-scan test.
• H-UDI-related pins (TCK, TDI, TDO, TMS, TRST and MPMD) are out of the scope of the
• DDRIF-related pins are out of the scope of the boundary-scan test.
• XRTCTBI pin is out of the scope of the boundary-scan test.
• During the boundary scan (IDCODE, EXTEST, SAMPLE/PRELOAD, BYPASS, and H-UDI
• The external controller has 8-bit access to the boundary-scan TAP controller via the H-UDI.
Note: During the boundary scan, the MPMD and PRESET pins should be fixed high-level.
Table 30.2 shows the commands supported by boundary-scan TAP controller.
Figure 30.2 shows the sequence for switching from boundary-scan TAP controller to H-UDI.
Rev.1.00 Dec. 13, 2005 Page 1138 of 1286
REJ09B0158-0100
boundary-scan test.
boundary-scan test.
switchover command), the maximum TCK signal frequency is 2 MHz.
3. This pin should be connected to ground, the PRESET, or another pin which operates in
Boundary Scan TAP Controllers (IDCODE, EXTEST,
SAMPLE/PRELOAD, and BYPASS)
the same manner as the PRESET pin. However, when connected to a ground pin, the
following problem occurs. Since the TRST pin is pulled up within this LSI, a weak
current flows when the pin is externally connected to ground pin. The value of the
current is determined by a resistance of the pull-up MOS for the port pin. Although this
current does not affect the operation of this LSI, it consumes unnecessary power.