R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 751

• 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: -

19.4.5
When the value of CMTCHnC (n = 1, 0) matches the lower 16-bit of CMTCHnT while the timer
CMTCH0C is operating, the output is inverted. Then the ICn flag in CMTIRQS is set to 1 and the
interrupt is generated when the ICEn bit in CMTCTL is set to 1. However, when the lower 16-bit
of time register CMTCHnT is H'0000, the compare match does not occur.
Each channel timer overflowed after the timer is counting up at H'FFFF that is the value of
CMTCHnC (n = 3 to 0). Then the IOn flag in CMTIRQS is set to 1 and the interrupt is generated
when the IOEn bit in CMTCTL is set to 1.
The 16-bit timer CMTCHnC (n = 3 to 0) is initialized to H'0000 when the TEn (n = 1, 0) bit in
CMTCL is cleared to 0 or a compare match occurs.
Note that channels 2 and 3 do not have the output pin, use as the interval timer to generate an
interrupt with regular period.
16-Bit Timer: Output Compare
CMT_CTRn
(CMT_CTR pins are available for channel 1 and channel 0)
16-bit counter =
channel time
Figure 19.11 16-Bit Timer Mode: Output Compare
CMTI
Channel time register
Rev.1.00 Dec. 13, 2005 Page 699 of 1286
16-bit counter
Section 19 Compare Match Timer (CMT)
Clock generation
REJ09B0158-0100