HD64F7145F50V Renesas Electronics America, HD64F7145F50V Datasheet - Page 774
![IC SUPERH MCU FLASH 256K 144QFP](/photos/12/22/122200/hd64f7145f50v_sml.jpg)
HD64F7145F50V
Manufacturer Part Number
HD64F7145F50V
Description
IC SUPERH MCU FLASH 256K 144QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7144r
Specifications of HD64F7145F50V
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
98
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F7145F50V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64F7145F50V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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24. Power-Down Modes
24.3.2
Transition to Software Standby Mode: A transition is made to software standby mode if the
SLEEP instruction is executed while the SSBY bit in SBYCR is set to 1. In this mode, the CPU,
on-chip peripheral functions, and the oscillator, all stop.
However, the contents of the CPU's internal registers and on-chip RAM data are retained as long
as the specified voltage is supplied. There are two types of on-chip peripheral module registers;
ones which are initialized by software standby mode, and those not initialized by that mode. For
details, refer to section 25.3, Register States in Each Operating Mode. The port high-impedance bit
(Hi-Z) in SBYCR sets the state of the I/O port either to "retained" or "high-impedance". For the
state of pins, refer to appendix A, Pin States. In software standby mode, the oscillator stops and
thus power consumption is significantly reduced.
Clearing Software Standby Mode: Software standby mode is cleared by the condition below.
• Clearing by the NMI interrupt input
• Clearing by the RES pin
Rev.4.00 Mar. 27, 2008 Page 728 of 882
REJ09B0108-0400
When the falling edge or rising edge of the NMI pin (selected by the NMI edge select bit
(NMIE) in ICR1 of the interrupt controller (INTC)) is detected, clock oscillation is started.
This clock pulse is supplied only to the watchdog timer (WDT).
After the elapse of the time set in the clock select bits (CKS2 to CKS0) in TCSR of the WDT
before the transition to software standby mode, the WDT overflow occurs. Since this overflow
indicates that the clock has been stabilized, clock pulse will be supplied to the entire chip after
this overflow. Software standby mode is thus cleared and the NMI exception handling is
started.
When clearing software standby mode by the NMI interrupt, set CKS2 to CKS0 bits so that the
WDT overflow period will be longer than the oscillation stabilization time.
When so&tware standby mode is cleared by the falling edge of the NMI pin, the NMI pin
should be high when the CPU enters software standby mode (when the clock pulse stops) and
should be low when the CPU returns from standby mode (when the clock is initiated after the
oscillation stabilization). When software standby mode is cleared by the rising edge of the
NMI pin, the NMI pin should be low when the CPU enters software standby mode (when the
clock pulse stops) and should be high when the CPU returns from software standby mode
(when the clock is initiated after the oscillation stabilization).
When the RES pin is driven low, clock oscillation is started. At the same time as clock
oscillation is started, clock pulse is supplied to the entire chip. Ensure that the RES pin is held
low until clock oscillation stabilizes. When the RES pin is driven high, the CPU starts the reset
exception handling.
Software Standby Mode
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