UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 825

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 12x10b; 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: -

22.2 Pin Functions
use these pins as key interrupts, this function must be specified by setting the relevant registers (see Table 4-15
Settings When Pins Are Used for Alternate Functions).
22.3 Registers
The key input pins that are used as key interrupts are also used for the other functions shown in Table 22-2. To
(1) Key return mode register (KRM)
The KRM register controls the KR0 to KR7 signals by using the KRM0 to KRM7 bits.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
37
38
39
40
41
42
61
62
After reset: 00H
Pin No.
KRM
Caution Clear the KRM register to 00H before rewriting it.
Function
P50
P51
P52
P53
P54
P55
P90
P91
KRMn
KRM7
Port
0
1
Do not detect key return signal
Detect key return signal
R/W
KR0
KR1
KR2
KR3
KR4
KR5
KR6
KR7
KRM6
CHAPTER 22 KEY INTERRUPT FUNCTION
Key Input Function
Address: FFFFF300H
Table 22-2. Pin Functions
KRM5
User’s Manual U18953EJ5V0UD
KRM4
Control of key return mode
P50/TIQ01/TOQ01/RTP00
P51/TIQ02/TOQ02/RTP01
P52/TIQ03/TOQ03/RTP02/DDI
P53/SIB2/TIQ00/TOQ00/RTP03/DDO
P54/SOB2/RTP04/DCK
P55/SCKB2/RTP05/DMS
P90/A0/TXDA1/SDA02
P91/A1/RXDA1/SCL02
KRM3
Other Functions
KRM2
KRM1
KRM0
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