UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 594
UPD78F1506GF-GAT-AX
Manufacturer Part Number
UPD78F1506GF-GAT-AX
Description
MCU 16BIT 78K0R/LX3 128-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Lx3r
Datasheet
1.UPD78F1500GK-GAK-AX.pdf
(1016 pages)
Specifications of UPD78F1506GF-GAT-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LCD, LVD, POR, PWM, WDT
Number Of I /o
78
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 594 of 1016
- Download datasheet (7Mb)
78K0R/Lx3
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
(3) IICA status register (IICS)
Address: FFF51H
Symbol
This register indicates the status of I
IICS is read by a 1-bit or 8-bit memory manipulation instruction only when STT = 1 and during the wait period.
Reset signal generation clears this register to 00H.
Caution Reading the IICS register while the address match wakeup function is enabled (WUP = 1) in STOP
Remark
IICS
Note This register is also cleared when a 1-bit memory manipulation instruction is executed for bits other than
Remark
Condition for clearing (MSTS = 0)
• When a stop condition is detected
• When ALD = 1 (arbitration loss)
• Cleared by LREL = 1 (exit from communications)
• When IICE changes from 1 to 0 (operation stop)
• Reset
Condition for clearing (ALD = 0)
• Automatically cleared after IICS is read
• When IICE changes from 1 to 0 (operation stop)
• Reset
Condition for clearing (EXC = 0)
• When a start condition is detected
• When a stop condition is detected
• Cleared by LREL = 1 (exit from communications)
• When IICE changes from 1 to 0 (operation stop)
• Reset
mode is prohibited. When the WUP bit is changed from 1 to 0 (wakeup operation is stopped),
regardless of the INTIICA interrupt request, the change in status is not reflected until the next
start condition or stop condition is detected. To use the wakeup function, therefore, enable (SPIE
= 1) the interrupt generated by detecting a stop condition and read the IICS register after the
interrupt has been detected.
STT: bit 1 of IICA control register 0 (IICCTL0)
WUP: bit 7 of IICA control register 1 (IICCTL1)
MSTS
MSTS
ALD
EXC
<7>
0
1
0
1
0
1
IICS. Therefore, when using the ALD bit, read the data of this bit before the data of the other bits.
LREL:
IICE:
After reset: 00H
Slave device status or communication standby status
Master device communication status
This status means either that there was no arbitration or that the arbitration result was a “win”.
This status indicates the arbitration result was a “loss”. MSTS is cleared.
Extension code was not received.
Extension code was received.
ALD
<6>
Figure 15-7. Format of IICA Status Register (IICS) (1/3)
Bit 6 of IICA control register 0 (IICCTL0)
Bit 7 of IICA control register 0 (IICCTL0)
EXC
<5>
2
C.
R
<4>
COI
Note
Detection of extension code reception
Detection of arbitration loss
Master status check flag
TRC
<3>
Condition for setting (MSTS = 1)
• When a start condition is generated
Condition for setting (ALD = 1)
• When the arbitration result is a “loss”.
Condition for setting (EXC = 1)
• When the higher four bits of the received address
data is either “0000” or “1111” (set at the rising edge
of the eighth clock).
CHAPTER 15 SERIAL INTERFACE IICA
ACKD
<2>
STD
<1>
SPD
<0>
594
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