read_mode

The type of read sequence that the controller will follow for pipe read commands.

Module Instance	Base Address	Register Address
`nandregs`	`0xFFB80000`	`0xFFB801C0`

Offset: 0x1C0

Access: RW

Important: To prevent indeterminate system behavior, reserved areas of memory must not be accessed by software or hardware. Any area of the memory map that is not explicitly defined as a register space or accessible memory is considered reserved.

Bit Fields
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
`Reserved`
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
`Reserved`												`value` `RW 0x0`

read_mode Fields

Bit	Name	Description	Access	Reset
3:0	`value`	The values in the field should be as follows: 4'h0 - This value informs the controller that the pipe read sequence to follow is of a normal read. For 512 byte page devices, Normal read sequence is, C00, Address, Data, ..... For devices with page size greater that 512 bytes, the sequence is, C00, Address, C30, Data..... 4'h1 - This value informs the controller that the pipe read sequence to follow is of a Cache Read with the following sequence, C00, Address, C30, C31, Data, C31, Data, ....., C3F, Data. 4'h2 - This value informs the controller that the pipe read sequence to follow is of a Cache Read with the following sequence, C00, Address, C31, Data, Data, ....., C34. 4'h3 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C00, Address, C00, Address, C30, Data, C06, Address, CE0, Data..... 4'h4 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C60, Address, C60, Address, C30, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data..... 4'h5 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C60, Address, C60, Address, C30, C31, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data, ....., C3F, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data 4'h6 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C00, Address, C32, .., C00, Address, C30, C06, Address, CE0, Data, C06, Address, CE0, Data,.... 4'h7 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C00, Address, C32,..., C00, Address, C30, C31,C06, Address, CE0, Data, C31, C06, Address, CE0, Data, C3F, C06, Address, CE0, Data.... 4'h8 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C60, Address, C60, Address, C33, C31, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data, ....., C3F, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data [*]4'h9 - 4'h15 - Reserved. indicates that the previous sequence is repeated till the last page.	`RW`	`0x0`

Bit

Name

Description

Access

Reset

3:0

value

The values in the field should be as follows:

4'h0 - This value informs the controller that the pipe read sequence to follow is of a normal read. For 512 byte page devices, Normal read sequence is, C00, Address, Data, ..... For devices with page size greater that 512 bytes, the sequence is, C00, Address, C30, Data.....
4'h1 - This value informs the controller that the pipe read sequence to follow is of a Cache Read with the following sequence, C00, Address, C30, C31, Data, C31, Data, ....., C3F, Data.
4'h2 - This value informs the controller that the pipe read sequence to follow is of a Cache Read with the following sequence, C00, Address, C31, Data, Data, ....., C34.
4'h3 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C00, Address, C00, Address, C30, Data, C06, Address, CE0, Data.....
4'h4 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C60, Address, C60, Address, C30, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data.....
4'h5 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C60, Address, C60, Address, C30, C31, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data, ....., C3F, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data
4'h6 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Read with the following sequence, C00, Address, C32, .., C00, Address, C30, C06, Address, CE0, Data, C06, Address, CE0, Data,....
4'h7 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C00, Address, C32,..., C00, Address, C30, C31,C06, Address, CE0, Data, C31, C06, Address, CE0, Data, C3F, C06, Address, CE0, Data....
4'h8 - This value informs the controller that the pipe read sequence to follow is of a 'N' Plane Cache Read with the following sequence, C60, Address, C60, Address, C33, C31, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data, ....., C3F, C00, Address, C05, Address, CE0, Data, C00, Address, C05, Address, CE0, Data
[*]4'h9 - 4'h15 - Reserved.

indicates that the previous sequence is repeated till the last page.

RW

0x0