MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 929

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RM0008
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
r
31
r
r
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
r
r
r
Bits 31:0 STS: System time second
r
Bits 30:0 STSS: System time subseconds
Ethernet PTP time stamp high register (ETH_PTPTSHR)
Address offset: 0x0708
Reset value: 0x0000 0000
This register contains the most significant (higher) 32 time bits. This read-only register
contains the seconds system time value. The Time stamp high register, along with Time
stamp low register, indicates the current value of the system time maintained by the MAC.
Though it is updated on a continuous basis.
Ethernet PTP time stamp low register (ETH_PTPTSLR)
Address offset: 0x070C
Reset value: 0x0000 0000
This register contains the least significant (lower) 32 time bits. This read-only register
contains the subsecond system time value.
r
r
Bit 31 STPNS: System time positive or negative sign
r
r
The value in this field indicates the current value in seconds of the System Time maintained by
the core.
r
r
This bit indicates a positive or negative time value. When set, the bit indicates that time
representation is negative. When cleared, it indicates that time representation is positive.
Because the system time should always be positive, this bit is normally zero.
The value in this field has the subsecond time representation, with 0.46 ns accuracy.
r
r
r
r
r
r
r
r
Ethernet (ETH): media access control (MAC) with DMA controller
r
r
r
r
r
Doc ID 13902 Rev 9
r
r
r
r
r
STS
r
STSS
r
r
r
r
r
r
r
r
r
r
r
r
9
r
9
r
8
r
8
r
7
r
7
r
6
r
6
r
5
r
5
r
4
4
r
r
3
3
r
r
2
2
r
r
929/995
1
1
r
r
0
r
0
r