Pierre Ossman wrote:
>
> We must not have the same specs. My simplified SD 2.0 physical spec
> defines everything below bit 15 as reserved.
I was a little unclear. Both specs define bit 7 as the low-voltage
range but only the MMC spec defines the actual voltage. As such, there
is no complete
Philip Langdale wrote:
> Clean up the handling of low voltage MMC cards.
>
>
> The latest MMC and SD specs both agree that the low
> voltage range is defined as 1.65-1.95V and is signified
> by bit 7 in the OCR. An old Sandisk spec implied that
> bits 7-0 represented voltages below 2.0V in 1V
Philip Langdale wrote:
Clean up the handling of low voltage MMC cards.
The latest MMC and SD specs both agree that the low
voltage range is defined as 1.65-1.95V and is signified
by bit 7 in the OCR. An old Sandisk spec implied that
bits 7-0 represented voltages below 2.0V in 1V
Pierre Ossman wrote:
We must not have the same specs. My simplified SD 2.0 physical spec
defines everything below bit 15 as reserved.
I was a little unclear. Both specs define bit 7 as the low-voltage
range but only the MMC spec defines the actual voltage. As such, there
is no complete
Clean up the handling of low voltage MMC cards.
The latest MMC and SD specs both agree that the low
voltage range is defined as 1.65-1.95V and is signified
by bit 7 in the OCR. An old Sandisk spec implied that
bits 7-0 represented voltages below 2.0V in 1V increments,
and the code was accordingly
Clean up the handling of low voltage MMC cards.
The latest MMC and SD specs both agree that the low
voltage range is defined as 1.65-1.95V and is signified
by bit 7 in the OCR. An old Sandisk spec implied that
bits 7-0 represented voltages below 2.0V in 1V increments,
and the code was accordingly
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