DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 500
DF2117VT20V
Manufacturer Part Number
DF2117VT20V
Description
MCU 16BIT FLASH 3V 160K 144-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheet
1.DF2117VT20HV.pdf
(1040 pages)
Specifications of DF2117VT20V
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
FIFO, I²C, LPC, SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
112
Program Memory Size
160KB (160K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-TQFP, 144-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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DF2117VT20V
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Section 15 Serial Communication Interface (SCI)
15.7.8
Clock Output Control
Clock output can be fixed using the CKE1 and CKE0 bits in SCR when the GM bit in SMR is set
to 1. Specifically, the minimum width of a clock pulse can be specified.
Figure 15.31 shows an example of clock output fixing timing when the CKE0 bit is controlled
with GM = 1 and CKE1 = 0.
CKE0
SCK
Specified pulse width
Specified pulse width
Figure 15.31 Clock Output Fixing Timing
At power-on and transitions to/from software standby mode, use the following procedure to secure
the appropriate clock duty ratio.
(1)
At Power-On
To secure the appropriate clock duty ratio simultaneously with power-on, use the following
procedure.
1. Initially, port input is enabled in the high-impedance state. To fix the potential level, use a
pull-up or pull-down resistor.
2. Fix the SCK pin to the specified output using the CKE1 bit in SCR.
3. Set SMR and SCMR to enable smart card interface mode.
4. Set the CKE0 bit in SCR to 1 to start clock output.
Rev. 2.00 Sep. 28, 2009 Page 458 of 994
REJ09B0452-0200
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