All About Circuits

Do we need pull ups in SPI with SD card

A

Thread Starter

aamirali

Joined Feb 2, 2012
412
1. I was reading MSP430 interface with SD card & found the schematic below. Do we need pull up on MOSI & MIS0 lines. Won't they slow down the speed ot they are optional.

2. Is it necessary to pull up 9 pin & gnd 8 pin

3. I am working on 4GB class 4 SD card. Is the entire range is writable or some is protected.

If I chose 512 bytes sector, then no of blocks are = 4GB/512 bytes. Is it???????
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
M To Pull up or to pull down? Different un-used pins need attention! PCB Layout , EDA & Simulations 7
B Need help AC coupling push pull amplifier with op amp Homework Help 11
N Need a rotary pot with momentary(spring loaded) push/pull action Datasheets, Manuals & Parts Identification 2
M I need to simulate a class B push pull amplifier with center tapped transformers to get 1A load current. General Electronics Chat 55
Chipbox Need guiding advice for designing push-pull DC/DC feedback control Power Electronics 1
Similar threads
To Pull up or to pull down? Different un-used pins need attention!
Need help AC coupling push pull amplifier with op amp
Need a rotary pot with momentary(spring loaded) push/pull action
I need to simulate a class B push pull amplifier with center tapped transformers to get 1A load current.
Need guiding advice for designing push-pull DC/DC feedback control

You May Also Like

Top