MCD212 Motorola, MCD212 Datasheet - Page 15

• Manufacturer Part Number: MCD212
• Description: Video Decoder and System Controller(with JTAG)
• Manufacturer: Motorola

1.3
1.4
There are two differences between the parts:
1. JTAG testing has been added for automated board testing. The additional pins required to do this
2. Also, the processor interface timing has been improved to allow operation with higher speed pro-
MOTOROLA
were V SS pins on the MCD211. Hence, the MCD212 can be put in place of an MCD211 and will
function identically. The functionality of the R/W, LDS, UDS, A1 – A22, RAS pins have been en-
hanced. (See Chapter 2 for the names of the new pins and the changes in functionality.)
cessors. This is detailed in Section 11.3.
DTACKSEL
D15 – D0
A22 – A1
RSTOUT
CSROM
BLOCK DIAGRAM
DIFFERENCES BETWEEN THE MCD211 AND THE MCD212
DTACK
BERR
HALT
CSIO
UDS
TMS
TDO
LDS
R/W
TCK
A23
INT
TDI
CS
AS
HOST
JTAG
TEST
I/F
I/F
Figure 1–2. Internal Block Diagram
DECODER 2
ICA2/DCA2
CONTROL
DISPLAY
FILE
CONTROL
DRAM
MISC.
DECODER 1
ICA1/DCA1
CONTROL
DISPLAY
MCD212
FILE
DECODER
REAL
TIME
INSTRUCTIONS
INSTRUCTIONS
ICA2/DCA2
ICA2/DCA2
CONTROL
DISPLAY
EFFECTS
VISUAL
M/S
VSYNC
HSYNC
CSYNC
BLANK
VSD
VSA
R(7:0)
G(7:0)
B(7:0)
1–3