UPD70F3745GJ-GAE-AX Renesas Electronics America, UPD70F3745GJ-GAE-AX Datasheet - Page 706
UPD70F3745GJ-GAE-AX
Manufacturer Part Number
UPD70F3745GJ-GAE-AX
Description
MCU 32BIT V850ES/JX3 144-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3r
Datasheet
1.UPD70F3743GJ-GAE-AX.pdf
(911 pages)
Specifications of UPD70F3745GJ-GAE-AX
Core Processor
RISC
Core Size
32-Bit
Speed
32MHz
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
128
Program Memory Size
768KB (768K x 8)
Program Memory Type
FLASH
Ram Size
60K x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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UPD70F3745GJ-GAE-AX
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V850ES/JJ3
20.2 Register
20.3 Cautions
R01UH0016EJ0400 Rev.4.00
Sep 30, 2010
(2) The RXDA1 and KR7 pins must not be used at the same time. To use the RXDA1 pin, do not use the KR7 pin. To
(1) Key return mode register (KRM)
(1) If a low level is input to any of the KR0 to KR7 pins, the INTKR signal is not generated even if the falling edge of
(3) If the KRM register is changed, an interrupt request signal (INTKR) may be generated. To prevent this, change the
(4) To use the key interrupt function, be sure to set the port pin to the key return pin and then enable the operation
The KRM register controls the KRM0 to KRM7 bits using the KR0 to KR7 signals.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
another pin is input.
use the KR7 pin, do not use the RXDA1 pin (it is recommended to set the PFC91 bit to 1 and clear PFCE91 bit to
0).
KRM register after disabling interrupts (DI) or masking, then clear the interrupt request flag (KRIC.KRIF bit) to 0,
and enable interrupts (EI) or clear the mask.
with the KRM register. To switch from the key return pin to the port pin, disable the operation with the KRM
register and then set the port pin.
After reset: 00H
KRM
Caution Rewrite the KRM register after once clearing the KRM register to 00H.
Remark For the alternate-function pin settings, see Table 4-19 Using Port Pins as Alternate-
KRMn
KRM7
Function Pins.
0
1
Does not detect key return signal
Detects key return signal
R/W
KRM6
Address: FFFFF300H
KRM5
KRM4
Control of key return mode
KRM3
CHAPTER 20 KEY INTERRUPT FUNCTION
KRM2
KRM1
KRM0
Page 690 of 892
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