UPD70F3737GC-UEU-AX Renesas Electronics America, UPD70F3737GC-UEU-AX Datasheet - Page 164

• Manufacturer Part Number: UPD70F3737GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3737GC-UEU-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 20MHz
• Number Of I /o: 84
• Core Processor: RISC
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Program Memory Size: 128KB (128K x 8)
• Data Converters: A/D 12x10b, D/A 2x8b
• Oscillator Type: Internal
• Peripherals: DMA, LVD, PWM, WDT
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

164
Remark
Remark
(2) In port mode, the PFn.PFnm bit is valid only in the output mode (PMn.PMnm bit = 0). In the input mode
(PMnm bit = 1), the value of the PFnm bit is not reflected in the buffer.
[Example 2] Switch from external pin (NMI) to general-purpose port (P02)
m = 2 to 6
m = 2 to 6
NMI interrupt occurrence
NMI interrupt occurrence
When the P02/NMI pin is pulled up as shown in Figure 4-34 and the falling edge is specified
in the NMI pin edge detection setting, even though high level is input continuously to the NMI
pin at switching from the NMI pin to the P02 pin (PMC02 bit = 1 → 0), this is detected as
falling edge as if high level changed to low level, and NMI interrupt occurs.
To avoid this, set the NMI pin edge detection as “No edge detected” before switching to the
P02 pin.
Figure 4-33. Example of Switching from P02 to NMI (Incorrect)
Figure 4-34. Example of Switching from NMI to P02 (Incorrect)
PMC0m bit = 0: Port mode
PMC0m bit = 1: Alternate-function mode
PMC0m bit = 0: Port mode
PMC0m bit = 1: Alternate-function mode
PMC0
PMC0
detector
detector
Rising
Falling
edge
edge
Preliminary User’s Manual U18953EJ1V0UD
CHAPTER 4 PORT FUNCTIONS
PMC02 bit = 1: High level
PMC02 bit = 1: High level
PMC02 bit = 0: Low level
PMC02 bit = 0: Low level
7
0
7
0
6
6
5
5
↓
↓
4
4
3
3
0 → 1
1 → 0
2
2
1
0
1
0
0
0
0
0
P02/NMI
P02/NMI
3 V
3 V