TC6387XB Toshiba, TC6387XB Datasheet - Page 39

• Manufacturer Part Number: TC6387XB
• Manufacturer: Toshiba

Specifications of TC6387XB

• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

4.7 SDLED signal
4.8 Clock supply to SD Card
TOSHIBA CONFIDENTIAL
(1) Set Stop Clock Control Register (Config Offset:40h) to 1Fh.
(2) Set D0 of SD Software Reset Register (Offset:0E0h) to 1b.
(3) Set D7-0 of SD Card Clock Control Register (Offset:024h). These bits are used for setting the frequency of
(4) D8 of SD Card Clock Control Register (Offset:024h) to 1b.
(5) D8 of Clock & Wait Control Register (Offset:138h) to 1b.
Register(Offset:13Eh). Before accessing SDLED Control Register(Offset:13Eh), please set following registers.
setting for enabling the SDCLK output.
settings of SD Card Clock Control Register (Offset:024h)becomes invalid setting.
TC6387XB has the SDLED signal for SD interface. This signal is controlled by setting SDLED Control
*Set SDLED Enable Register 1(Config Offset:FAh) to 12h.
*Set SDLED Enable Register 2(Config Offset:FEh) to 80h.
The SDCLK signal is used for a provision of SD Memory Card or SDIO Card. Please refer to the following
Please attend that the specification of SDCLK is max.25MHz at the case of SD Card and is max.20MHz at the
case of MultiMedia Card.
In addition, TC6387XB holds a function that SDCLK can have same frequency as HCLK. In this case, D7-0
SDCLK.
* Set D0 of Clock Mode Register (Config Offset:42h) to 1b.
* Set D15 of SD Card Clock Control Register (Offset:024h) to 1b.
80h : SDCLK=HCLK/512
40h : SDCLK=HCLK/256
20h : SDCLK=HCLK/128
10h : SDCLK=HCLK/64
08h : SDCLK=HCLK/32
04h : SDCLK=HCLK/16
02h : SDCLK=HCLK/8
01h : SDCLK=HCLK/4
00h : SDCLK=HCLK/2
TC6387XB Specification
TOTAL
62
Rev. 1.0 02/02/06
PAGE NO.39