Nations N32G45 Series, User Manual

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487 / 838
Nations Technologies Inc.
Tel
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+86-755-86309900
Email
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info@nationstech.com
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
Bit Field Name Description
31:0 CARDSTSx
：
See table below.
Depending on the response status, the card's status length is either 32 bits or 127 bits.
Table 18-33 Response Type and SDIO_RESPONSEx Register
Register Short response Long response
SDIO_ RESPONSE1 Card Status[31:0] Card Status[127:96]
SDIO_ RESPONSE2 Unused Card Status[95:64]
SDIO_ RESPONSE3 Unused Card Status[63:32]
SDIO_ RESPONSE4 Unused Card Status[31:1]
The highest bit of the card status is always received first, and the lowest bit of the SDIO_RESPONSE3 register is
always 0.
18.7.8 SDIO data timer register (SDIO_DTIMER)
Address offset: 0x24
Reset value: 0x0000 0000
SDIO_DTIMER register contains the data timeout in card bus clock cycles.
A counter loads the value from the SDIO_DTIMER register and counts down when the data path state machine
(DPSM) enters the Wait_R or busy state, and sets the timeout flag if the counter decrements to 0 while the DPSM is
in these states.
Bit Field Name Description
31:0 DATTIMEOUT Data timeout period.
Data timeout in card bus clock cycles.
Note: Before writing to the data control register for data transfer, the data timer register and data length register
must be written first.