NXP Semiconductors
UM10858
PN7462 family HW user manual
UM10858
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User manual
COMPANY PUBLIC
Rev. 1.4 — 14 May 2018
314514
62 of 345
7.5 Clock Status Register description
Table 52. CLKGEN_STATUS_REG (address 0000h)
Bit
Symbol
Access
Value
Description
31:27
RESERVED
-
0
Reserved
26
CLIF_CLOCK_PRESENCE_OK
R
0
Indicates the status of clkgen_clif_pll_lock2_o signal.
1: CLIF PLL2 lock signal set
0: CLIF PLL2 lock signal not set
25
XTAL_ACTIVATION_TIME
OUT_ERROR
R
0
high if timeout for XTAL Activation is reached
1: Xtal activation has timed-out
24
XTAL_DETECT_OK
R
0
Indicates the presence of clock signal on clk_xtal if
xtal_detect_enable is set.
1: Xtal detection done
23
XTAL_OSC_OK
R
0
high to indicate the clock is ready
1: Xtal osc clock is ready
22
CLIF_PLL_LOCK_OVERRIDEN
R
0
1: pll_lock2 OR pll_bypass_lock2 is set
0: pll_lock2 OR pll_bypass_lock2 is not set
21
CLIF_CLK_IN_DETECT_DONE
R
0
CLIF PLL detection status
1: CLIF PLL clk_in detection done
20
CLIF_CLK_IN_OK
R
0
PLL input clock detector ok signal.
1: clk_in is present and correct
0: clk_in not ok
19
CLIF_PLL_LOCK2
R
0
Lock detector Output for 2nd PLL
1: PLL2 lock is set
0: PLL2 lock is not set
18
CLIF_PLL_LOCK1
R
0
Lock detector Output for 1st PLL.
1: PLL1 lock is set
0: PLL1 lock is not set
17
XTAL_OK
R
0
1: XTAL oscillator is activated
16
XTAL_ENABLED
R
0
1: XTAL oscillator is enabled
0: XTAL oscillator disabled
15:8
CLK_IN_EDGES_COUNTER
R
0
input clock edges counter value when the
USB_PLL_CLK_IN detection completes successfully
7
CLK_IN_DETECT_DONE
R
0
USB_PLL input clock detection status
1: USB PLL input clock detection completed
6
CLK_IN_OK
R
0
USB_PLL input clock detector OK Status.
1: CLK_IN is present and the frequency matches
expected frequency
5
USB_PLL_FR
R
0
USB_PLL free running detector status
1: USB PLL is in free running mode
4
USB_PLL_PACK
R
0
USB_PLL post-divider ratio change acknowledge
1: USB_PLL post-divider ratio change has been
Acknowledged
0: No post-divider ratio change
3
USB_PLL_NACK
R
0
USB_PLL pre-divider ratio change acknowledge
1: USB_PLL pre-divider ratio change has been
Acknowledged
0: No pre-divider ratio change
2
USB_PLL_MACK
R
0
USB_PLL feedback divider ratio change acknowledge
1: USB_PLL feedback divider ratio change has been