Mmc Interface - Spectrum Digital TMS320VC5509A EVM PLUS Technical Reference

2.8 MMC Interface

The VC5509A EVM PLUS supports a multi media card on McBSP2. This port can also
be routed to the expansion connector. When bit 1 in register 5 (MISC Reg) is "0"
(default) McBSP2 is used for the MMC Interface. When bit 1 register 5 (MISC Reg) is
"1" McBSP2 is routed to the expansion daughter connector.
2.9 LCD Display/Keyboard Interface
The C5509A EVM Interface Register implements specific logic for the C5509A EVM.
The bits used in this register and their function are described in the table below.
Bit
7
6
5
4
3
2
1
0
LCD Busy indicates the status of the CPLD implemented shift register which interfaces
to the LCD panel. A 1 logic level indicates the shift register is busy, A 0 logic level
indicates the shift register is ready.
LCD Reset allows the LCD Reset bit to be toggled under software control. A 1 logic
level forces the LCD panel into reset. A 0 logic level removes the LCD reset to normal
state.
Table 9: C5509A EVM PLUS Interface
Name R/W
LCD Busy R 0 = busy, not ready, 1 = not busy, ready
LCD Reset R/W 0 = removes reset from LCD, 1 = forces LCD into reset
Reserved R
Reserved R
Reserved R
Reserved R
Reserved R
Reserved R
Spectrum Digital, Inc
Description
2-11