UPD70F3737GF-GAS-AX Renesas Electronics America, UPD70F3737GF-GAS-AX Datasheet - Page 738
UPD70F3737GF-GAS-AX
Manufacturer Part Number
UPD70F3737GF-GAS-AX
Description
MCU 32BIT V850ES/JX3-L 100-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Lr
Datasheet
1.UPD70F3737GF-GAS-AX.pdf
(1071 pages)
Specifications of UPD70F3737GF-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
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
-
Available stocks
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Company:
Part Number:
UPD70F3737GF-GAS-AX
Manufacturer:
Renesas Electronics America
Quantity:
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19.14 Communication Reservation
19.14.1 When communication reservation function is enabled (IICFn.IICRSVn bit = 0)
reservation can be made to enable transmission of a start condition when the bus is released. There are two modes in
which the bus is not used by the V850ES/JG3-L.
generated and a wait status is set after the bus is released (after a stop condition is detected).
address transfer to start. At this point, the IICCn.SPIEn bit should be set to 1 (n = 0 to 2).
determined according to the bus status (n = 0 to 2).
period, then check the IICSn.MSTSn bit (n = 0 to 2).
the SMCn, CLn1, and CLn0 bits of the IICCLn register and the IICXn.CLXn bit (n = 0 to 2).
736
To start master device communications when the V850ES/JG3-L is not currently using the bus, a communication
• When arbitration results in the V850ES/JG3-L being neither the master nor a slave
• When an extension code is received and slave operation is disabled (ACK is not returned and the bus was
If the IICCn.STTn bit is set to 1 while the bus is not used by the V850ES/JG3-L, a start condition is automatically
When the bus release is detected (when a stop condition is detected), writing to the IICn register causes master
When STTn has been set to 1, the operation mode (as start condition or as communication reservation) is
If the bus has been released .............................................A start condition is generated
If the bus has not been released (standby mode)..............Communication reservation
To detect which operation mode has been determined for the STTn bit, set the STTn bit to 1, wait for the wait
The wait periods, which should be set via software, are listed in Table 19-6. These wait periods can be set by using
released when the IICCn.LRELn bit was set to 1) (n = 0 to 2).
User’s Manual U18953EJ5V0UD
CHAPTER 19 I
2
C BUS
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