D17760BP200ADV Renesas Electronics America, D17760BP200ADV Datasheet - Page 381

• Manufacturer Part Number: D17760BP200ADV
• Description: MPU 3V 8K,PB-FREE, 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of D17760BP200ADV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 69
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

10.5.16 Accessing Refresh Control Related Registers
RTCSR, RTCNT, RTCOR, and RFCR require that a specific code be appended to the data when it
is written to prevent data from being mistakenly overwritten by program overruns or other write
operations. Perform reads and writes using the following methods:
(1) Write to RTCSR, RTCNT, RTCOR, or RFCR
When writing to RTCSR, RTCNT, RTCOR, and RFCR, use only word transfer instructions. They
cannot be written to with byte transfer instructions.
When writing to RTCNT, RTCSR, or RTCOR, place B'10100101 in the upper byte and the write
data in the lower byte. When writing to RFCR, place B'101001 in the top six bits and the write
data in the remaining bits, as shown in figure 10.5.
(2) Read from RTCSR, RTCNT, RTCOR, or RFCR
RTCSR, RTCNT, RTCOR, or RFCR should be read in 16-bit units. Each reserved bit is always
read as 0.
RTCSR, RTCNT,
RTCOR
RFCR
Figure 10.5 Write to RTCSR, RTCNT, RTCOR, or RFCR
15
15
1
1
14 13
14 13
0
0
1
1
12 11
12 11
0
0
0
0
10
10
1
1
0
9
9
8
8
1
Rev. 2.00 Feb. 12, 2010 Page 297 of 1330
7
7
6
6
Write data
5
5
Write data
4
4
3
3
REJ09B0554-0200
2
2
1
1
0
0