Block TEST_GENERATE

General

Function	Generation of the test sequence
Modification	1
Version	1.0
ID	0x1A

Состав регистров

Number	Name	Description
Constant
0	BLOCK_ID	0xX01A	The ID of the control block
1	BLOCK_VER	0x0100	Version of the control block
2
3
4
5
6
7
Operations register
8	TEST_GEN_CTRL	Control of the TEST_GEN
9	TEST_GEN_SIZE	Size of the data block
0x0A	TEST_GEN_CNT1	Counter of enable TEST_GEN
0x0B	TEST_GEN_CNT2	Counter of pause TEST_GEN
0x0C
0x0D
0x0E
0x0F
Direct registers
0x10
0x11	TEST_GEN_BL_WR	The number of transmitted data block
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F

Description

Block TEST_GEB is designed to generation the test sequence.

The algorithm works:

reset: TEST_GEN_CTRL[RESET]=1, TEST_GEN_CTRL[RESET]=0
set mode: TEST_GEN_CTRL[FIX_MODE, BLOCK_MODE], CNT1, CNT2
program and start DMA controller in the PE_EXT_FIFO block
start: TEST_GEN_CTRL[START]=1 - enable to DMAR

The test sequence is a set of data blocks.
The block size is specified multiple of the size of 4 kilobytes
(512 words by 64 bits)
The first 64-bit word in the block contains the signature and serial number:

31 .. 0 - signature 0xA5A50123
63 .. 32 - serial number of the unit

Contents of the block depends on its number in the sequence.

The contents of the data block:

0 - Running the unit on the 64th bits
1 - Running zero on the 64th bits
2 - Running the unit with an inversion of the 64-th digit
- Even numbers of words - running the unit on the 64th bits
- Odd numbers - inversion previous word
3 - Running with zero inversion ranks 64th
- Even numbers - running zero to 64-th digit
- Odd numbers - inversion previous word
4 - Running in the unit block
      Word number is compared with the number of units (compare lower eight bits)
      At coincidence - in the Word is running 1.
     Other words - zero.
5 - Running a zero in the block
       Word number is compared with the number of units (compare lower eight bits)
       At coincidence - in the Word is running 0.
       Other words - value 0xFFFFFFFFFFFFFFFF.
6.7 - Counter on the 64th bits
- Even numbers - count
- Odd numbers - inversion previous word
8.9 - The pseudo-random sequence
         Formed M-sequence of 64 bits.
         The initial value of - 1
         The word is formed shift by one bit to the left.
         In LSB words recorded value of x[63] xor x[62] xor x[60] xor x[59]

Description of the register

BLOCK_ID

Bit	Name	Description
11..0	ID	The ID of the control block
15..12	MOD	Number of modification

BLOCK_VER

Bit	Name	Description
7..0	V0	Field V0
15..8	V1	Field V1

Version: V1.V0

TEST_GEN_CTRL

Бит	Название	Описание
0	RESET	1 - reset
3..1	-
4	-
5	START	1 - enable
6	CNT_MODE	1 - enable counter: TEST_GEN_CNT1, TEST_GEN_CNT2
7	FIX_MODE	1 - fixed data block type
11..8	BLOCK_MODE	Number of type data block at FIX_MODE=1
14..12	-
15	RDY	1 - forcing ready FIFO

TEST_GEN_SIZE

Бит	Название	Описание
15..0	SIZE	Size of data block

Size of a block is specified in units of 4 kilobytes. A value of 1 corresponds to a block size of 4 kilobytes.

TEST_GEN_CNT1

Бит	Название	Описание
15..0	CNT	Number of cycles of the enable data

TEST_GEN_CNT2

Бит	Название	Описание
15..0	CNT	Number of cycles of the pause

TEST_GEN_BL_WR

Бит	Название	Описание
15..0	CNT	The number of transmitted data block

Version history

1.0

10.11.2011

Basic version