DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 527
DF2345TE20
Manufacturer Part Number
DF2345TE20
Description
MCU 5V 128K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.DF2345TE20V.pdf
(929 pages)
Specifications of DF2345TE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
71
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2345TE20
HD64F2345TE20
HD64F2345TE20
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13.3.7
Switching the Mode: When switching between smart card interface mode and software standby
mode, the following switching procedure should be followed in order to maintain the clock duty.
[1] Set the data register (DR) and data direction register (DDR) corresponding to the SCK pin to
[2] Write 0 to the TE bit and RE bit in the serial control register (SCR) to halt transmit/receive
[3] Write 0 to the CKE0 bit in SCR to halt the clock.
[4] Wait for one serial clock period.
[5] Write H'00 to SMR and SCMR.
[6] Make the transition to the software standby state.
[7] Exit the software standby state.
[8] Set the CKE1 bit in SCR to the value for the fixed output state (current SCK pin state) when
[9] Set smart card interface mode and output the clock. Signal generation is started with the
When changing from smart card interface mode to software standby mode
the value for the fixed output state in software standby mode.
operation. At the same time, set the CKE1 bit to the value for the fixed output state in
software standby mode.
During this interval, clock output is fixed at the specified level, with the duty preserved.
When returning to smart card interface mode from software standby mode
software standby mode is initiated.
normal duty.
Operation in GSM Mode
[1] [2] [3]
Normal operation
Figure 13.9 Clock Halt and Restart Procedure
[4] [5] [6]
Software
standby
[7] [8] [9]
Rev. 4.00 Feb 15, 2006 page 501 of 900
Normal operation
Section 13 Smart Card Interface
REJ09B0291-0400
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