
1–38
Chapter 1: Cyclone IV Device Datasheet
Glossary
December 2013
Altera Corporation
J
JTAG Waveform
K
——
L
——
M
——
N
——
O
——
P
PLL Block
The following highlights the PLL specification parameters:
Q
——
Table 1–46. Glossary (Part 2 of 5)
Letter
Term
Definitions
TDO
TCK
tJPZX
t
JPCO
t
JSCO
t
JSXZ
tJPH
tJSH
t JPXZ
tJCP
tJPSU_TMS
t JCL
tJCH
TDI
TMS
Signal
to be
Captured
Signal
to be
Driven
tJPSU_TDI
tJSZX
tJSSU
Core Clock
Phase tap
Reconfigurable in User Mode
Key
CLK
N
M
PFD
VCO
CP
LF
CLKOUT Pins
GCLK
fINPFD
fIN
fVCO
fOUT
fOUT _EXT
Switchover
Counters
C0..C4