R8A77850ADBGV Renesas Electronics America, R8A77850ADBGV Datasheet - Page 844

• 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: -

18. Timer Unit (TMU)
(3)
• Operating on internal clock
• Operating on external clock
Rev.1.00 Jan. 10, 2008 Page 812 of 1658
REJ09B0261-0100
Any of five internal count clocks (Pck/4, Pck/16, Pck/64, Pck/256, or Pck/1024) scaled from
the peripheral clock can be selected as the count clock by means of the TPSC2 to TPSC0 bits
in TCR.
Figure 18.4 shows the timing in this case.
In channels 0, 1, and 2, the external clock input pin (TCLK) input can be selected as the timer
clock by means of the TPSC2 to TPSC0 bits in TCR. The detected edge (rising, falling, or both
edges) can be selected with the CKEG1 and CKEG0 bits in TCR.
Figure 18.5 shows the timing for both-edge detection.
TCNT Count Timing
External clock
input pin (TCLK)
Pck
TCNT
Pck
Internal clock
TCNT
Figure 18.5 Count Timing when Operating on External Clock Input
Figure 18.4 Count Timing when Operating on Internal Clock
N + 1
N + 1
N
N
N – 1
N – 1