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參數(shù)資料
| 型號(hào)： | P87C591SFB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Single-chip 8-bit microcontroller with CAN controller |
| 中文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 X 1.75 MM, PLASTIC, SOT-307-2, QFP-44 |
| 文件頁(yè)數(shù)： | 80/161頁(yè) |
| 文件大?。?/td> | 588K |
| 代理商： | P87C591SFB |
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1999 Aug 19
80
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
Fig.34 Serial Clock Synchronization.
handbook, full pagewidth
MHI035
SDA
SCL
(1)
(3)
(1)
(2)
mark
duration
space duration
(1) Another service pulls the SCL line low before the SIO “mask” duration is complete. The serial clock generator
is immediately reset and commences with the “space” duration by pulling SCL low.
(2) Another device still pulls the SCL line low after SIO1 releases SCL. The serial clock generator is forced into
the wait state until the SCL line is released.
(3) The SCL line is released, and the serial clock generator commences with the mark duration.
15.2.6
S
ERIAL
C
LOCK
G
ENERATOR
This programmable clock pulse generator provides the
SCL clock pulses when SIO1 is in the master transmitter
or master receiver mode. It is switched off when SIO1 is in
a slave mode. The programmable output clock
frequencies are: f
CLK
/120, f
CLK
/9600, and the Timer 1
overflow rate divided by eight. The output clock pulses
have a 50% duty cycle unless the clock generator is
synchronized with other SCL clock sources as described
above.
15.2.7
T
IMING AND
C
ONTROL
The timing and control logic generates the timing and
control signals for serial byte handling. This logic block
provides the shift pulses for S1DAT, enables the
comparator, generates and detects start and stop
conditions, receives and transmits acknowledge bits,
controls the master and slave modes, contains interrupt
request logic, and monitors the I
2
C bus status.
15.2.8
C
ONTROL
R
EGISTER
, S1CON
This 7-bit special function register is used by the
microcontroller to control the following SIO1 functions:
start and restart of a serial transfer, termination of a serial
transfer, bit rate, address recognition, and
acknowledgment.
15.2.9
S
TATUS
D
ECODER AND
S
TATUS
R
EGISTER
The status decoder takes all of the internal status bits and
compresses them into a 5-bit code. This code is unique for
each I
2
C bus status. The 5-bit code may be used to
generate vector addresses for fast processing of the
various service routines. Each service routine processes a
particular bus status. There are 26 possible bus states if all
four modes of SIO1 are used. The 5-bit status code is
latched into the five most significant bits of the status
register when the serial interrupt flag is set (by hardware)
and remains stable until the interrupt flag is cleared by
software. The three least significant bits of the status
register are always zero. If the status code is used as a
vector to service routines, then the routines are displaced
by eight address locations. Eight bytes of code is sufficient
for most of the service routines (see the software example
in this section).
15.2.10 T
HE
F
OUR
SIO1 S
PECIAL
F
UNCTION
R
EGISTERS
The microcontroller interfaces to SIO1 via four special
function registers. These four SFRs (S1ADR, S1DAT,
S1CON, and S1STA) are described individually in the
following sections.
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| P87C591VFA/00,512 | 功能描述:8位微控制器 -MCU 80C51 16K OTP/CAN RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| P87C654X2BBD,157 | 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C LQFP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| P87C654X2FA | 制造商:NXP Semiconductors 功能描述:P87C654X2FA 8bit microcontroller,33MHz |
| P87C654X2FA,529 | 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| P87C654X2FA-S | 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C PLCC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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