HD6417727F100C Renesas Electronics America, HD6417727F100C Datasheet - Page 485

• Manufacturer Part Number: HD6417727F100C
• Description: IC SUPERH MPU ROMLESS 240QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F100C

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 100MHz
• 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): 1.6 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

Section 14 Direct Memory Access Controller (DMAC)
14.3.6
Source Address Reload Function
Channel 2 includes a reload function, in which the value set in the source address register (SAR2)
is restored every four transfers when the RO bit in CHCR2 is set to 1. This function cannot be
used with the 16-byte transfer. Figure 14.24 shows this operation. Figure 14.25 shows a timing
chart of the source address reload function with the following conditions: burst mode, auto
request, 16-bit transfer data size, SAR2 count-up, DAR2 fixed, reload function on, and usage of
only channel 2.
DMAC
DMAC control
RO bit = 1
CHCR2
Count signal
Transfer
DMATCR2
request
Reload signal
SAR2
Reload control
(initial value)
Reload
signal
SAR2
4 time
count
Figure 14.24 Source Address Reload Function Diagram
Rev.6.00 Mar. 27, 2009 Page 427 of 1036
REJ09B0254-0600