Rainbow Electronics DS3131 - Manual (Page 10)

DS3131
10 of 174
Figure 2-1. Block Diagram
RC2
RD2
TC2
TD2
JTDO
PCLK
PAD[31:0]
PRST
PCBE[3:0]
PPAR
PFRAME
PIRDY
PTRDY
PSTOP
PIDSEL
PDEVSEL
PREQ
PGNT
PPERR
PSERR
RC39
RD39
TC39
TD39
RC0
RD0
TC0
TD0
RC1
RD1
TC1
TD1
PXAS
PXDS
PXBLAST
JTRST
JTDI
JTMS
JTCLK
LA[19:0]
LD[15:0]
LWR(LR/W)
LRD(LDS)
LIM
LINT
LRDY
LMS
LCS
LHOLD(
LBR)
LHLDA( LBG)
LBGACK
LCLK
PIN NAMES IN ( )
ARE ACTIVE WHEN
THE DEVICE IS IN
THE MOT MODE
(i.e., LIM = 1).
LBHE
JTAG
TEST
ACCESS
(SECT. 12)
LOCA
L B
U
S
B
LOC
K
(SEC
T.
1
1)
LA
Y
E
R 1
B
LOCK
(S
E
C
T.
6)
40-B
IT S
Y
NCHRONOUS
HDLC
CONT
ROLLE
RS
(
S
E
C
T
. 7)
FIFO
BLOC
K (
S
EC
T
. 8)
D
M
A
BL
O
C
K
(
S
EC
T.
9
)
PC
I BL
O
C
K
(
S
EC
T.
1
0)
BERT
(SECT. 6)
RECEIVE DIRECTION
TRANSMIT DIRECTION
INTERNAL CONTROL BUS
LBPXS
DS3131