Intel B940 FF8062700847801 User Manual
Product codes
FF8062700847801
Datasheet, Volume 1
71
Electrical Specifications
Table 7-3.
Signal Groups (Sheet 1 of 2)
1
Signal Group
Alpha
Group
Type
Signals
System Reference Clock
Differential
(a)
CMOS Input
BCLK[0], BCLK#[0],
BCLK[1], BCLK#[1],
PEG_CLK, PEG_CLK#
BCLK[1], BCLK#[1],
PEG_CLK, PEG_CLK#
Differential
(b)
CMOS Output
BCLK_ITP, BCLK_ITP#
DDR3 Reference Clocks
2
Differential
(c)
DDR3 Output
SA_CK[3:0], SA_CK#[3:0]
SB_CK[3:0], SB_CK#[3:0]
SB_CK[3:0], SB_CK#[3:0]
DDR3 Command Signals
2
Single Ended
(d)
DDR3 Output
SA_RAS#, SB_RAS#,
SA_CAS#, SB_CAS#
SA_WE#, SB_WE#
SA_MA[15:0], SB_MA[15:0]
SA_BS[2:0], SB_BS[2:0]
SA_DM[7:0], SB_DM[7:0]
SM_DRAMRST#
SA_CS#[3:0], SB_CS#[3:0]
SA_ODT[3:0], SB_ODT[3:0]
SA_CKE[3:0], SB_CKE[3:0]
SA_WE#, SB_WE#
SA_MA[15:0], SB_MA[15:0]
SA_BS[2:0], SB_BS[2:0]
SA_DM[7:0], SB_DM[7:0]
SM_DRAMRST#
SA_CS#[3:0], SB_CS#[3:0]
SA_ODT[3:0], SB_ODT[3:0]
SA_CKE[3:0], SB_CKE[3:0]
DDR3 Data Signals
2
Single ended
(e)
DDR3 Bi-directional
SA_DQ[63:0], SB_DQ[63:0]
Differential
(f)
DDR3 Bi-directional
SA_DQS[8:0], SA_DQS#[8:0]
SA_ECC_CB[7:0]
SA_ECC_CB[7:0]
3
SB_DQS[8:0], SB_DQS#[8:0]
SB_ECC_CB[7:0]
SB_ECC_CB[7:0]
3
TAP (ITP/XDP)
Single Ended
(g)
CMOS Input
TCK, TMS, TRST#
Single Ended
(ga)
CMOS Input
TDI, TDI_M
Single Ended
(h)
CMOS Open-Drain
Output
TDO, TDO_M
Single Ended
(i)
Asynchronous CMOS
Output
TAPPWRGOOD
Control Sideband
Single Ended
(ja)
Asynchronous CMOS
Input
VCCPWRGOOD_0,
VCCPWRGOOD_1, VTTPWRGOOD
Single Ended
(jb)
Asynchronous CMOS
Input
SM_DRAMPWROK
Single Ended
(k)
Asynchronous Output
RESET_OBS#
Single Ended
(l)
Asynchronous GTL
Output
PRDY#, THERMTRIP#
Single Ended
(m)
Asynchronous GTL Input
PREQ#
Single Ended
(n)
GTL Bi-directional
CATERR#, BPM#[7:0]
Single Ended
(o)
Asynchronous Bi-
directional
PECI
Single Ended
(p)
Asynchronous GTL Bi-
directional
PROCHOT#