pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 204
![no-image](/images/no-image-200.jpg)
pc87591l
Manufacturer Part Number
pc87591l
Description
Lpc Mobile Embedded Controllers
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87591L.pdf
(437 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PC87591L
Manufacturer:
NS
Quantity:
5 510
Company:
Part Number:
PC87591L
Manufacturer:
MOT
Quantity:
5 510
Company:
Part Number:
pc87591l-VPCN01
Manufacturer:
NSC
Quantity:
5 510
Part Number:
pc87591l-VPCN01
Manufacturer:
NS/国半
Quantity:
20 000
- Current page: 204 of 437
- Download datasheet (3Mb)
www.national.com
Embedded Controller Modules
ACB Control Status Register (ACBnCST)
The ACBnCST register maintains current ACB status and controls several ACB module functions, as described below. On
reset and when the module is disabled, the non-reserved bits of ACBnCST are cleared (00
Location: Channel 1 - 00 FF64
Type: Varies per bit
Bit
Name
Reset
Bit
0
1
2
3
4
5
6
7
R/W1C BB (Bus Busy). When set (1), indicates the bus is busy. It is set either when the bus is active (i.e., a
Channel 2 - 00 FFE4
Type
R/W
RO
RO
RO
RO
RO
RO
ARPMATCH MATCHAF
BUSY. When set (1), indicates that the ACB module is in one of the following states:
– Generating a Start Condition
– In Master mode (MASTER in ACBnST register is set)
– In Slave mode (MATCH or GMATCH in ACBnCST register is set)
– In the period between detecting a Start Condition and completing the reception of the address byte;
The BUSY bit is cleared by the completion of any of the above states or by disabling the module. It
should always be written 0.
low level on either SDA or SCL) or by a Start Condition. It is cleared when the module is disabled, on
detection of a Stop Condition or by writing 1 to this bit. See Section 4.13.9 on page 207 for a
description of the use of this bit.
MATCH (Address Match). In Slave mode, MATCH is set (1) when SAEN in ACBnADDR register is
set and the first seven bits of the address byte (the first byte transferred after a Start Condition) match
the 7-bit address in ACBnADDR register. It is cleared by Start Condition, a Repeated Start or a Stop
Condition (including illegal Start or Stop Condition).
GCMATCH (Global Call Match). In Slave mode, GCMTCH is set (1) when GCMEN in ACBnCTL1
register is set and the address byte (the first byte transferred after a Start Condition) is 00
cleared by a Start Condition, a Repeated Start or a Stop Condition (including illegal Start or Stop
Condition).
TSDA (Test SDA Line). Reads the current value of the SDA line. This bit can be used while
recovering from an error condition in which the SDA line is constantly pulled low by a slave that went
out of synch. Data written to this bit is ignored.
TGSCL (Toggle SCL Line). Enables toggling the SCL line during the process of error recovery. When
the SDA line is low, writing 1 to this bit toggles the SCL line for one cycle. Writing 1 to TGSCL while
SDA is high is ignored. The bit is cleared when the clock toggle is completed.
MATCHAF (Match Address Field). When the MATCH bit is set, MATCHAF indicates with which of
the two possible slave addresses (ADDR cleared in ACBnADDR register or set in ACBnADDR2
register) the match has occurred. If both addresses match, the bit is cleared.
ARPMATCH (ARP address Match). In Slave mode, ARPMTCH is set (1) when ARPMEN in
ACBnCTL3 register is set and the address byte (the first byte transferred after a Start Condition) is
110 0001
or Stop Condition).
7
0
after this, the ACB either becomes not busy or enters Slave mode.
2
. It is cleared by Start Condition, a Repeated Start or a Stop Condition (including illegal Start
16
16
6
0
TGSCL
(Continued)
5
0
TSDA
204
4
0
Description
GCMATCH
3
0
MATCH
2
0
16
).
BB
1
0
16
BUSY
. It is
Revision 1.07
0
0
Related parts for pc87591l
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![mma1270keg](/images/no-image3.png)
Part Number:
Description:
Freescale Semiconductor Technical Data
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC12034](/images/no-image3.png)
Part Number:
Description:
Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2350](/images/no-image3.png)
Part Number:
Description:
Pllatinum Tm Fractional N Rf / Integer N If Dual Low Power Frequency Synthesizer
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2324](/images/no-image3.png)
Part Number:
Description:
Pllatinum? 2.0 Ghz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2301](/images/no-image3.png)
Part Number:
Description:
Pllatinumtm 160 Mhz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![NDS8963](/images/no-image3.png)
Part Number:
Description:
Dual N-channel Enhancement Mode Field Effect Transistor
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM1201](/images/no-image3.png)
Part Number:
Description:
Video Amplifier System (obsolete)
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM3501TL-16](/images/no-image3.png)
Part Number:
Description:
Synchronous Step-up DC/DC Converter For White Led Applications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![AD9621](/images/no-image3.png)
Part Number:
Description:
CLC420 - High Speed, Voltage Feedback op Amp, Package: Lcc, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM2403](/images/no-image3.png)
Part Number:
Description:
Monolithic Triple 4.5 CRT Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM592M](/images/no-image3.png)
Part Number:
Description:
Differential Video Amplifier
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC10061](/images/no-image3.png)
Part Number:
Description:
ADC10061 - 10-Bit 600 NS A/D Converter With Input Multiplexer And Sample/Hold, Package: Soic Wide, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS36277TMX](/images/no-image3.png)
Part Number:
Description:
DS36277 - Dominant Mode Multipoint Transceiver, Package: Soic Narrow, Pin Nb=8
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS3654](/images/no-image3.png)
Part Number:
Description:
Printer Solenoid Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS3662](/images/no-image3.png)
Part Number:
Description:
Quad High Speed Trapezoidal Bus Transceiver
Manufacturer:
National Semiconductor Corporation
Datasheet: