- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368391 > PXAS37KBA512 IC-SM-16-BIT MCU PDF資料下載
參數(shù)資料
| 型號： | PXAS37KBA512 |
| 英文描述： | IC-SM-16-BIT MCU |
| 中文描述： | 集成電路釤16位MCU |
| 文件頁數(shù)： | 19/51頁 |
| 文件大?。?/td> | 405K |
| 代理商： | PXAS37KBA512 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁
Philips Semiconductors
XA 16-bit microcontroller
32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.7 V–5.5 V),
I
2
C, 2 UARTs, 16 MB address range
Preliminary specification
XA-S3
2000 Mar 09
19
CR0, CR1, and CR2, the Clock Rate Bits
These three bits determine the serial clock frequency when the I
2
C
interface is in a master mode. An I
2
C rate of 100kHz or lower is
typical and can be derived from many oscillator frequencies. The
various serial rates are shown in Table 4. A variable bit rate may
also be used if Timer 1 is not required for any other purpose while
the I
2
C hardware is in a master mode. The frequencies shown in
Table 4 are unimportant when the I
2
C hardware is in a slave mode.
In the slave modes, the hardware will automatically synchronize with
the incoming clock frequency.
The I
2
C Status Register, I2STA
I2STA is an 8-bit read-only special function register. The three least
significant bits are always zero. The five most significant bits contain
the status code. There are 26 possible status codes. When I2STA
contains F8H, no relevant state information is available and no serial
interrupt is requested. All other I2STA values correspond to defined
hardware interface states. When each of these states is entered, a
serial interrupt is requested (SI = “1”).
NOTE: A detailed I
2
C interface description and usage
information, including example driver code, will be provided in
a separate document.
Table 4. I
2
C Rate Control
Frequency
(CR2, CR1, CR0)
Clock Divisor
Example I
2
C Rates at Specific Oscillator Frequencies
8 MHz
(400)
1
(200)
1
(116.65)
1
12 MHz
16 MHz
20 MHz
24 MHz
30 MHz
0h (0000)
20
–
–
–
–
–
1h (0001)
40
(300)
1
(176.46)
1
(136.36)
1
(400)
1
(235.29)
1
(181.82)
1
–
–
–
2h (0010)
68
(294.12)
1
(227.27)
1
(125)
1
(352.94)
1
(272.73)
1
(150)
1
–
3h (0011)
88
90.91
(340.91)
1
(187.5)
1
(110.29)
1
4h (0100)
160
50
75
100
5h (0101)
272
29.41
44.12
58.82
73.53
88.24
6h (0110)
352
22.73
(Timer 1)
2
34.09
(Timer 1)
2
45.45
(Timer 1)
2
56.82
(Timer 1)
2
68.18
(Timer 1)
2
85.23
(Timer 1)
2
7h (0111)
NOTES:
1. The XA-S3 I
2
C interface does not conform to the 400kHz I
2
C specification (which applies to rates greater than 100kHz) in all details, but
may be used with care where higher rates are required by the application.
2. The timer 1 overflow is used to clock the I
2
C interface. The resulting bit rate is 1/2 of the timer overflow rate.
(Timer 1)
2
Next
Back
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PXAS83XFA | XA 16-bit microcontroller(XA 16位微控制器) |
| PXAS31KFA | XA 16-bit microcontroller 32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16MB address range |
| PXAS31KFBE | XA 16-bit microcontroller 32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16MB address range |
| PXAS83XFBE | XA 16-bit microcontroller 32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16MB address range |
| PXASCC | CMOS 16-bit communications microcontroller(CMOS 16位通信微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PXAS37KBBE | 功能描述:16位微控制器 - MCU XA 16BIT 32KOTP/1KRM 277Q1 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| PXAS37KBBE,557 | 功能描述:16位微控制器 - MCU XA 16BIT 32KOTP/1KRM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| PXAS37KFA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:XA 16-bit microcontroller 32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16 MB address range |
| PXAS37KFA512 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC-SM-16-BIT MCU |
| PXAS37KFBE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:XA 16-bit microcontroller 32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16 MB address range |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。