R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 252

• Manufacturer Part Number: R5F61668RN50FPV
• Description: IC H8SX/1668 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RN50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• For Use With: R0K561668S000BE - KIT STARTER FOR H8SX/1668R0K561664S001BE - KIT STARTER FOR H8SX/1651HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 9 Bus Controller (BSC)
Note: * Only 0 can be written to this bit, to clear the flag.
Rev. 2.00 Sep. 24, 2008 Page 218 of 1468
REJ09B0412-0200
Bit
3
2
1
0
Bit Name
SLFRF
TPS2
TPS1
TPS0
Initial
Value
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Description
Self-Refresh Enable
Selects the self-refresh mode for the DRAM/SDRAM
interface when a transition to the software standby
mode is made with this bit set to 1. To perform a refresh
cycle by setting the RFSHE bit is set to 1, this bit is
effective.
To perform a self-refresh cycle when the SDRAM
interface is selected, enable the CKE output by setting
the OEE bit in DRAMCR.
0: Disables self-refresh
1: Enables self-refresh
Precharge Cycle Control during Self-Refresh
Selects the number of precharge cycles immediately
after a self-refresh cycle. The number of actual number
of precharge cycles is the sum of the numbers indicated
by these bits and bits TPC1 and TPC0.
000: No wait cycle inserted
001: One wait cycle inserted
010: Two wait cycles inserted
010: Three wait cycles inserted
010: Four wait cycles inserted
010: Five wait cycles inserted
010: Six wait cycles inserted
010: Seven wait cycles inserted