DF2317VTE25 Renesas Electronics America, DF2317VTE25 Datasheet - Page 559
DF2317VTE25
Manufacturer Part Number
DF2317VTE25
Description
MCU 3V 128K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.D12312SVTE25V.pdf
(1146 pages)
Specifications of DF2317VTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
79
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 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
HD64F2317VTE25
HD64F2317VTE25
HD64F2317VTE25
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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.
• When changing from smart card interface mode to software standby mode
[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 the 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.
• When returning to smart card interface mode from software standby mode
[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
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.
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.7.00 Feb. 14, 2007 page 525 of 1108
Normal operation
Section 13 Smart Card Interface
REJ09B0089-0700
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