73s1217f68im Maxim Integrated Products, Inc., 73s1217f68im Datasheet - Page 32

• Manufacturer Part Number: 73s1217f68im
• Description: Bus-powered 80515 System-on-chip With Usb, Iso 7816 / Emv, Pinpad And More
• Manufacturer: Maxim Integrated Products, Inc.

Miscellaneous Control Register 1 (MISCtl1): 0xFFF2
*Note: The ANAPEN bit should never be set under normal circumstances. Power down control should
only be initiated via use of the PWRDN bit in MISCtl0.
32
MISCtl1.7
MISCtl1.6
MISCtl1.5
MISCtl1.4
MISCtl1.3
MISCtl1.2
MISCtl1.1
MISCtl1.0
Bit
MSB
–
ANAPEN*
USBCON
USBPEN
Symbol
FLSH66
FRPEN
–
–
–
–
Flash Read Pulse enable (low). If FRPEN = 1, the Flash Read signal is
passed through with no change. When FRPEN = 0 a one-shot circuit that
shortens the Flash Read signal is enabled to save power. The Flash Read
pulse will shorten to 40 or 66ns (approximate based on the setting of the
FLSH66 bit) in duration, regardless of the MPU clock rate. For MPU clock
frequencies greater than 10MHz, this bit should be set high.
When high, creates a 66ns Flash read pulse, otherwise creates a 40ns read
pulse when FRPEN is set.
0 = Enable the analog functions that generate VREF and bias current
functions. Setting high will turn off the VPD regulator and VCO/PLL
functions.
0 = Enable the USB differential transceiver.
USB pull-up resistor connect enable.
FRPEN
Table 16: The MISCtl1 Register
FLSH66
0x10
–
Function
ANAPEN USBPEN USBCON
LSB
Rev. 1.2