UPD78F1174AGF-GAT-AX Renesas Electronics America, UPD78F1174AGF-GAT-AX Datasheet - Page 928

• Manufacturer Part Number: UPD78F1174AGF-GAT-AX
• Description: MCU 16BIT 78K0R/KX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1174AGF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, EBI/EMI, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 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: -

926
A/D
converter
Function
ADCR: 10-bit
A/D conversion
result register
ADCRH: 8-bit
A/D conversion
result register
ADS: Analog
input channel
specification
register
ADPC: A/D port
configuration
register
PM2, PM15: Port
mode registers 2
and 15
A/D conversion
operation
Temperature
sensor function
Registers used
by temperature
sensors
Basic operations
of A/D converter
Details of
Function
When writing to the A/D converter mode register (ADM), analog input channel
specification register (ADS), and A/D port configuration register (ADPC), the contents
of ADCR may become undefined. Read the conversion result following conversion
completion before writing to ADM, ADS, and ADPC. Using timing other than the
above may cause an incorrect conversion result to be read.
When writing to the A/D converter mode register (ADM), analog input channel
specification register (ADS), and A/D port configuration register (ADPC), the contents
of ADCRH may become undefined. Read the conversion result following conversion
completion before writing to ADM, ADS, and ADPC. Using timing other than the
above may cause an incorrect conversion result to be read.
Be sure to clear bits 4 to 6 to “0”.
Set a channel to be used for A/D conversion in the input mode by using port mode
registers 2 and 15 (PM2, PM15).
Do not set the pin that is set by ADPC as digital I/O by ADS.
Set a channel to be used for A/D conversion in the input mode by using port mode
registers 2 and 15 (PM2, PM15).
Do not set the pin that is set by ADPC as digital I/O by ADS.
P20/ANI0 to P27/ANI7 and P150/ANI8 to P157/ANI15 are set as analog inputs in the
order of P157/ANI15, …, P150/ANI8, P27/ANI7, …, P20/ANI0 by the A/D port
configuration register (ADPC). When using P20/ANI0 to P27/ANI7 and P150/ANI8 to
P157/ANI15 as analog inputs, start designing from P157/ANI15.
If a pin is set as an analog input port, not the pin level but “0” is always read.
Make sure the period of <2> to <6> is 1
Make sure the period of <2> to <6> is 1
<2> may be done between <3> and <5>.
The period from <7> to <10> differs from the conversion time set using bits 5 to 1
(FR2 to FR0, LV1, LV0) of ADM. The period from <9> to <10> is the conversion time
set using FR2 to FR0, LV1, and LV0.
The temperature sensor cannot be used when low current consumption mode is set
(RMC = 5AH) or when the internal high-speed oscillator has been stopped
(HIOSTOP = 1 (bit 0 of CSC register)). The temperature sensor can operate as long
as the internal high-speed oscillator operates (HIOSTOP = 0), even if it is not
selected as the CPU/peripheral hardware clock source.
Setting of the A/D port configuration register (ADPC), port mode register 2 (PM2) and
port register 2 (P2) is not required when using the temperature sensor. There is no
problem if the pin function is set as digital I/O.
Set the conversion times so as to satisfy the following condition. f
When rewriting FR2 to FR0, LV1, and LV0 to other than the same data, stop A/D
conversion (ADCS = 0) beforehand.
The above conversion time does not include clock frequency errors.
conversion time, taking clock frequency errors into consideration.
APPENDIX B LIST OF CAUTIONS
User’s Manual U18432EJ5V0UD
Cautions
μ
μ
s or more.
s or more.
AD
= 0.6 to 1.8 MHz p.388
Select
p.378
p.378
p.379
p.379
p.379
p.380
p.380
p.380
p.381
p.382
p.386
p.386
p.386
p.387
p.388
p.388
p.388
(14/35)
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