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参数资料
| 型号： | IQ80C154-12R |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 12 MHz, MICROCONTROLLER, CQFP44 |
| 封装： | CERAMIC, QFP-44 |
| 文件页数： | 78/109页 |
| 文件大小： | 10824K |
| 代理商： | IQ80C154-12R |
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56
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
Table 10-9. Overriding Signals for Alternate Functions in PB[1:0]
Note:
When TWI is enabled the slew rate control and spike filter are activate on PB1. This is not illustrated in Figure 10-6 on
page 48. The spike filter is connected between AIOxn and the TWI.
10.4
Register Description
10.4.1 PORTCR – Port Control Register
Bits 7:2 – Res: Reserved Bits
These bits are reserved and will always read as zero.
Bit 1 – BBMB: Break-Before-Make Mode Enable
When this bit is set the Break-Before-Make mode is activated for the entire Port B. The intermediate tri-state cycle is then
inserted when writing DDRBn to make an output. For further information, see “Break-Before-Make Switching” on page
Bit 0 – BBMA: Break-Before-Make Mode Enable
When this bit is set the Break-Before-Make mode is activated for the entire Port A. The intermediate tri-state cycle is then
inserted when writing DDRAn to make an output. For further information, see “Break-Before-Make Switching” on page
Signal
PB1/OC1A/SDA/MOSI/PCINT9
PB0/T0/CLKI/PCINT8
PUOE
0
EXT_CLOCK (1)
1.
EXT_CLOCK = external clock is selected as system clock.
PUOV
0
DDOE
(SPE MSTR) + TWEN
EXT_CLOCK (1)
DDOV
TWEN SDA_OUT
0
PVOE
TWEN + (SPE MSTR) + OC1A_ENABLE
PVOV
TWEN SPE MSTR SPI_MASTER_OUT + TWEN
(SPE + MSTR) OC1A
0
PTOE
0
DIEOE
PCINT9 PCIE1
EXT_CLOCK(1) + (PCINT8 PCIE1)
DIEOV
PCINT9 PCIE1
( EXT_CLOCK(1) PWR_DOWN ) +
(EXT_CLOCK(1) PCINT8 PCIE1)
DI
PCINT9 / SPI Slave Input
CLOCK / PCINT8 / T0 Input
AIO
SDA Input
Bit
7
6
5
4
3
2
1
0
–
BBMB
BBMA
PORTCR
Read/Write
R
R/W
Initial Value
0
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相关代理商/技术参数 |
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|---|---|
| IQ80C154-16 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| IQ80C154-20 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| IQ80C154-25 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| IQ80C154-30 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| IQ80C154-36 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
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