Maxim Integrated MAX32665 User Manual

MAX32665-MAX32668 User Guide
Maxim Integrated Page 154 of 457
SPIXF Controller General Control Register
SPIXFC_GEN_CTRL
[0x0008]
Bits
Name
Access
Reset
Description
6
sckdr
R/W
0
SCK Drive and State
This bit reflects the state of the SCK. When in Bit-Bang mode
(SPIXFC_GEN_CTRL.bbmode = 1), this bit is written to control the output state of
the SCK.
0: SCK is 0.
1: SCK is 1.
5
-
R/W
0
Reserved for Future Use
Do not modify this field.
4
ssdr
R/W
0
Slave Select Drive and State
This bit reflects the state of the slave select. This accounts for the polarity as
defined in the SPIXFC_SS_POL register. When in Bit-Bang mode, this bit is
written to control the output state of the slave select.
0: Selected Slave Select Output is 0
1: Selected Slave Select Output is 1.
3
bbmode
R/W
0
Bit-Bang Mode
0: Disable Bit-Bang mode
1: Enable Bit-Bang mode
2
rfifoen
R/W
0
Receive FIFO Enable
Setting this bit enables the Receive FIFO. Clearing this bit disables the Receive
FIFO and places it into a reset state.
0: Disable result FIFO.
1: Enable result FIFO.
1
tfifoen
R/W
0
Transmit FIFO Enable
Setting this bit to 1 enables the Transmit FIFO. Clearing this bit disables the
Transmit FIFO and places it into reset state.
0: Disable Transmit FIFO.
1: Enable Transmit FIFO.
0
enable
R/W
0
SPI Master enable
Setting this bit to 1 enables SPI Master for processing transactions. Clearing this
bit disables the SPI Master and puts the block into reset state.
0: Disable SPI Master, putting it into a reset state.
1: Enable SPI Master for processing transactions.
Table 8-8. SPIXF Controller FIFO Control and Status Register
SPIXF Controller FIFO Control and Status Register
SPIXFC_FIFO_CTRL
[0x000C]
Bits
Name
Access
Reset
Description
31:30
-
R/W
00
Reserved for Future Use
Do not modify this field.
29:24
rfifocnt
R/W
0
Receive FIFO Entry Count
Current number of used entries (bytes) in Receive FIFO. Writes to this field are
ignored.
23:21
-
R/W
0
Reserved for Future Use
Do not modify this field.

Maxim Integrated MAX32665 Specifications

General

Brand	Maxim Integrated
Model	MAX32665
Category	Motherboard
Language	English