HD6417727F160V Renesas Electronics America, HD6417727F160V Datasheet - Page 493

• Manufacturer Part Number: HD6417727F160V
• Description: MPU 3V 16K PB-FREE 240-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F160V

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 160MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.7 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Compare-Match Constant Register 0 (CMCOR0)
The compare-match constant register 0 (CMCOR0) is a 16-bit register that sets the period until a
compare-match of CMCNT0 and CMCOR0 occurs.
The CMCOR0 is initialized to H'FFFF by a reset, but it retains its previous values in standby
mode.
14.4.3
Period Count Operation
When the clock is selected with the CKS1 and CKS0 bits in CMCSR0 and the STR0 bit in
CMSTR is set to 1, the CMCNT0 starts incrementation with the selected clock. When the
CMCNT value matches that in CMCOR0, CMCNT0 is cleared to H'0000 and the CMF flag in
CMCSR0 is set to 1. The CMCNT0 counter starts incrementation again from H'0000.
Figure 14.27 shows the compare-match counter operation.
Initial value:
Initial value:
Operation
CMCOR0
R/W:
R/W:
Bit:
Bit:
H'0000
CMCNT0 value
R/W
R/W
15
1
7
1
Figure 14.27 Counter Operation
R/W
R/W
14
1
6
1
R/W
R/W
13
1
5
1
Section 14 Direct Memory Access Controller (DMAC)
R/W
R/W
Counter cleared by
CMCOR0 compare match
12
1
4
1
Rev.6.00 Mar. 27, 2009 Page 435 of 1036
R/W
R/W
11
1
3
1
R/W
R/W
10
1
2
1
REJ09B0254-0600
Time
R/W
R/W
9
1
1
1
R/W
R/W
8
1
0
1