lf3324 LOGIC Devices Incorporated, lf3324 Datasheet - Page 19

• Manufacturer Part Number: lf3324
• Description: 24mbit Frame Buffer / Fifo
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
LOGIC Devices Incorporated
Configuration Register Definitions
Register B[3:0] FLAG_CTL[3:0] for pins PE and PF *
*Each flag is updated on the rising edge of its associated clock: WCLK (Incoming) or RCLK (Emerging)
D f, v, h are the TRS bits embedded in the incoming TRS signals.
Q f, v, h are the TRS bits embedded in the emerging TRS signals.
RA is the read address pointer value.
MA is the ‘marked’ address pointer value.
Register C[7:4] = BASE_ADDR[3:0] - position of chip in cascade series; 0000 = lowest;
BASE_ADDR[3:0] must not exceed CASCADE[3:0]**
0000:
0001:
....
0111:
** Note: There are two cascaded die per LF3324. Die 0 is chip 1 of 2, die 2 is chip 2 of 2.
Register C[3:0] = CASCADE[3:0] - number of chips in a system with concatenated address
spaces*.
0001:
0011:
....
1111:
* Note limits regarding the number of possible chips, related to WIDTH control:
8bit data: 5 or less LF3324s (WIDTH = 0x)
10bit data: 6 or less LF3324s (WIDTH = 10)
12bit data: 8 or less LF3324s (WIDTH = 11)
FLAG_CTL
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
chip one of N (N is number of chips in system)
chip two of N (N is number of chips in system)
....
chip eight of N (N is number of chips in system)
single chip operation (two die)
two chip cascade (four die)
....
eight chip cascade (sixteen die)
Q f (Emerging)
Q f (Emerging)
D f (Incoming)
D f (Incoming)
Q v (Emerging)
------
D v (Incoming)
Empty (Emerging)
D f (Incoming)
Q f (Emerging)
PE
19
Full (Incoming)
RA=MA (Emerging)
D v (Incoming)
Q v (Emerging)
D v (Incoming)
Q v (Emerging)
D h (Incoming)
Q h (Emerging)
D h (Incoming)
Q h (Emerging)
PF
24Mbit Frame Buffer / FIFO
Preliminary Datasheet
Video Imaging Product
COLLIDE
COLLIDE (Emerging)
COLLIDE (Emerging)
D h (Incoming)
Q h (Emerging)
COLLIDE (Emerging)
COLLIDE (Emerging)
COLLIDE (Emerging)
COLLIDE (Emerging)
COLLIDE (Emerging)
COLLIDE (Emerging)
June 8, 2007 LDS.3324 G
LF3324