Intel Intel NetStructure Single Board Computer, MPCBL0010 manual Telecom Clock Register 5 0A0Dh

MPCBL0010 SBC—Telecom Clock

Table 147. Telecom Clock Register 5 0A0Dh

Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
	Read	PCB				Version
0xA0D	Write	NU				NU
	Reset	PCB				Version

PCB: Set to “1” to indicate that the compilation switch was properly set in the source code and that the PLD is compiled for PCB revision 1.

VERSION: PLD code version. A value of:

PCB&Version = FF: indicates a test PLD to make a clock generator.

PCB&Version = FE: indicates a test PLD used during manufacturing tests.

Table 148. Telecom Clock Register 6 0A0Eh

Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
	Read	UNLOCK10	UNLOCK01	HLDOVR10	HLDOVR01	SEC10	SEC01	PRI10	PRI01
0xA0E	Write	NU	NU	NU	NU	NU	NU	NU	NU
	Reset	X	X	X	X	X	X	X	X

PRI01: Bit PRI_LOS in telecom clock register 2 switched from 0 to 1

PRI10: Bit PRI_LOS in telecom clock register 2 switched from 1 to 1

SEC01: Bit SEC_LOS in telecom clock register 2 switched from 0 to 1

SEC10: Bit SEC_LOS in telecom clock register 2 switched from 1 to 0

HLDOVR01: Bit HOLDOVER in telecom clock register 2 switched from 0 to 1

HLDOVR10: Bit HOLDOVER in telecom clock register 2 switched from 1 to 0

UNLOCK01: Bit UNLOCK in telecom clock register 2 switched from 0 to 1

UNLOCK10: Bit UNLOCK in telecom clock register 2 switched from 1 to 0

This register reports changes since the last time it was read. A legacy ISA interrupt is generated when any of these bits are set. The actual interrupt used is assigned by the BIOS at boot time and can be read from telecom clock register 7.

Reading this register clears all bits that were '1' prior to reading. Bits that turned to '1' during the reading will not be affected.

Table 149. Telecom Clock Register 7 0A0Fh

Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
	Read	NU	NU	NU	NU	Interrupt Number
0xA0F	Write	NU	NU	NU	NU	Interrupt Number
	Reset	X	X	X	X	0101b

The content of this register is the number of the legacy ISA interrupt used for events (see Table 148). It is initialized at boot time by the BIOS.

Intel NetStructure® MPCBL0010 Single Board Computer
Technical Product Specification	October 2006
174	Order Number: 304120