UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 772

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

770
Remarks 1. Bit 1 (STT) becomes 0 when it is read after data setting.
Note The signal of this bit is invalid while IICE0 is 0.
Cautions concerning set timing
• For master reception:
• For master transmission: A start condition cannot be generated normally during the acknowledge period. Set to 1
• Cannot be set to 1 at the same time as SPT.
• Setting STT to 1 and then setting it again before it is cleared to 0 is prohibited.
Condition for clearing (STT = 0)
• Cleared by setting STT to 1 while communication
• Cleared by loss in arbitration
• Cleared after start condition is generated by master
• Cleared by LREL = 1 (exit from communications)
• When IICE = 0 (operation stop)
• Reset
device
STT
reservation is prohibited.
0
1
Note
2. IICRSV: Bit 0 of IIC flag register (IICF)
Do not generate a start condition.
When bus is released (in standby state, when IICBSY = 0):
When a third party is communicating:
In the wait state (when master device):
If this bit is set (1), a start condition is generated (startup as the master).
Generates a restart condition after releasing the wait.
Figure 14-6. Format of IICA Control Register 0 (IICCTL0) (3/4)
• When communication reservation function is enabled (IICRSV = 0)
• When communication reservation function is disabled (IICRSV = 1)
STCF:
Functions as the start condition reservation flag. When set to 1, automatically generates a start
condition after the bus is released.
Even if this bit is set (1), the STT bit is cleared and the STT clear flag (STCF) is set (1). No start
condition is generated.
Bit 7 of IIC flag register (IICF)
Cannot be set to 1 during transfer. Can be set to 1 only in the waiting period when ACKE
has been cleared to 0 and slave has been notified of final reception.
during the wait period that follows output of the ninth clock.
CHAPTER 14 SERIAL INTERFACE IICA
User’s Manual U19678EJ1V1UD
Start condition trigger
Condition for setting (STT = 1)
• Set by instruction