Broadcom NetXtreme/NetLink BCM5718 Series User Manual

Central Power Management Unit (CPMU) RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 391
GPHY Control/Status Register (offset: 0x3638)
This register is reset by POR Reset or CPMU Register Software Reset.
Name Bits Access
Default
Value
Description
Reserved 31:14 DC 0x0 –
(BCM5719) Reserved 31:29 DC 0x0 –
(BCM5719) Keep NCSI PLL on
During Low Power mode
28 RW 0x0 Keep NCSI PLL on during low power mode.
0: NCSI PLL is powered off in low power mode
1: NCSI PLL is kept running in low power mode
(BCM5719) Switching
Regulator Power Down
27 RW 0x0 Switching regulator power down control bit
0: Switching regulator on
1: Switching regulator off
(BCM5719) TLP Clock Source 26 RW 0x0 TLP clock source mux control.
0: From PCIE SERDES
1: 125 MHz from NCSI PLL
(BCM5719) NCSI PLL Lock
Status
25 RO 0x0 NCSI PLL Lock Status
(BCM5719) OTP SERDES
PLL Lock Status
24 RO 0x0 OTP SERDES PLL Lock Status
(BCM5719) GPHY PLL Lock
Status
23 RO 0x0 GPHY PLL Lock Status
(BCM5719) PCIE SERDES
PLL Lock Status
22 RO 0x0 PCIE SERDES PLL Lock Status
(BCM5719) NCSI PLL Test
Select
21:18 RW 0x0 NCSI PLL Test Select
(BCM5719) NCSI PLL Test
Enable
17 RW 0x0 NCSI PLL Test Enable
(BCM5719) NCSI PLL Power
Down
16 RW 0x0 NCSI PLL Power Down
(BCM5719) SGMII/PCS
Powerdown
15 RW 0x0 Setting this bit will powerdown SGMII-PCS
module.
(BCM5719) SGMII/PCS Reset 14 RW 0x0 Setting this bit will reset SGMII-PCS module.
GPHY 10 MB Receive Only
mode TX Idle Debounce Timer
13:12 RW 0x1 10 MB Receive Only mode TX Idle Debounce
Timer.
0x1 = 6 µs
(BCM5718) Reserved 11 DC 0x0 –
(BCM5719) Software
controlled GPHY Force DLL on
11 RW 0x0 When this bit is enabled, GPHY DLL will be
forced on by CPMU (unless the chip is in Low
Power mode). This bit is intended for ASF.
GPHY DLL IDDQ state 10 RO 0x0 Gphy_iddq_dll_act state
GPHY pwrdn 9 RO CPMU controlled output to GPHY
GPHY set_bias_iddq 8 RO CPMU controlled output to GPHY
GPHY force_dll_on 7 RO CPMU controlled output to GPHY
GPHY dll_pwrdn_ok 6 RO CPMU controlled output to GPHY

Broadcom NetXtreme/NetLink BCM5718 Series Specifications

General

Brand	Broadcom
Model	NetXtreme/NetLink BCM5718 Series
Category	Controller
Language	English