R5F61668RD50FPV Renesas Electronics America, R5F61668RD50FPV Datasheet - Page 938
R5F61668RD50FPV
Manufacturer Part Number
R5F61668RD50FPV
Description
MCU 3V 1024K I-TEMP 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.R5F61668RN50FPV.pdf
(1506 pages)
Specifications of R5F61668RD50FPV
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
Eeprom Size
-
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
-40°C ~ 85°C
Package / Case
144-LQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F61668RD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 19 Serial Communication Interface (SCI, IrDA, CRC)
19.3.11 Serial Extended Mode Register 5 and 6 (SEMR_5 and SEMR_6)
SEMR_5 and SEMR_6 select the clock source in asynchronous mode of SCI_5 and SCI_6. The
base clock is automatically specified when the average transfer rate operation is selected. TMQ
output in TMR unit 2 and unit 3 can also be set as the serial transfer base clock. Figure 19.3
describes the examples of base clock features when the average transfer rate operation is selected.
Figure 19.4 describes the examples of base clock features when the TMO output in TMR is
selected.
Rev. 2.00 Sep. 24, 2008 Page 904 of 1468
REJ09B0412-0200
Bit
7 to 5
4
3
2
1
0
Bit
Bit Name
Initial Value
R/W
Bit Name
ABCS
ACS3
ACS2
ACS1
ACS0
Undefined
R
7
Initial
Value
Undefined R
0
0
0
0
0
Undefined
R
6
Undefined
R/W
R/W
R/W
R/W
R/W
R/W
R
5
Description
Reserved
These bits are always read as undefined and cannot be
modified.
Asynchronous Mode Base Clock Select (valid only in
asynchronous mode)
Selects the base clock for a 1-bit period.
0: The base clock has a frequency 16 times the transfer
1: The base clock has a frequency 8 times the transfer
Asynchronous Mode Clock Source Select
These bits select the clock source for the average
transfer rate function in the asynchronous mode. When
the average transfer rate function is enabled, the base
clock is automatically specified regardless of the ABCS
bit value. The average transfer rate only corresponds to
8MHz, 10.667MHz, 12MHz, 16MHz, 24MHz, and
32MHz. No other clock is available. Setting of ACS3 to
ACS0 must be done in the asynchronous mode (the
C/A bit in SMR = 0) and the external clock input mode
(the CKE bit I SCR = 1). The setting examples are in
figures 19.3 and 19.4.
(Each number in the four-digit number below
corresponds to the value in the bits ACS3 to ACS0 from
left to right respectively.)
rate
rate
ABCS
R/W
4
0
ACS3
R/W
3
0
ACS2
R/W
2
0
ACS1
R/W
1
0
ACS0
R/W
0
0
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