SPEAR320-2 STMicroelectronics, SPEAR320-2 Datasheet - Page 61

• Manufacturer Part Number: SPEAR320-2
• Description: IC MPU ARM9 289LFBGA
• Manufacturer: STMicroelectronics
• Series: SPEAr®r

Specifications of SPEAR320-2

• Processor Type: ARM Microprocessor
• Speed: 333MHz
• Voltage: 1.14 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 289-LFBGA
• Processor Series: SPEAr320
• Core: ARM926EJ-S
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 333 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Data Ram Size: 8 KB
• Interface Type: I2C, UART, USB, Serial
• Number Of Programmable I/os: 102
• Number Of Timers: 4
• Program Memory Size: 32 KB
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10843

SPEAr320
7.5.1
Note:
MII transmit timing specifications
Figure 31. MII TX waveforms
Figure 32. Block diagram of MII TX pins
Table 37.
To calculate the t
you have to apply the following formula: t
t
t
t
max
min
SETUP
CLK
= t2
MII_TXEN, MII_TXER
= t2
MIITX_CLK
MII_TXD0-MII_TXD3,
MII_TXEN, MII_TXER
min
Tmin
max
- t3
MII_TX[0..3],
Parameter
- t3
MII TX timings
max
min
Tmax
SETUP
value for the PHY you have to consider the next t
Tclock
Doc ID 16755 Rev 4
Value using MII 10 Mb [t
period = 40 ns 25 MHz]
t3
D
SET
CLR
SETUP
Q
Q
33.2 ns
6.8 ns
2.9 ns
= t
CLK
t2
- t
CLK
max
Tf
Value using MII 100 Mb [t
period = 400 ns 2.5 MHz]
Timing requirements
MII_TXEN, MII_TXER
MII_TXCLK
CLK
393.2 ns
6.8 ns
2.9 ns
MII_TX[0..3],
rising edge, so
Tr
61/76
CLK