Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 224

• Manufacturer Part Number: Z8F16800144ZCOG
• Description: KIT DEV FOR Z8F642 MCU 44 PIN
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: MCUr

Specifications of Z8F16800144ZCOG

• Contents: Hardware, Software and Documentation
• For Use With/related Products: Z8F642
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4678

Table 114. ESPI Status Register (ESPISTAT)
PS025011-1010
BITS
FIELD
RESET
R/W
ADDR
Note: R/W* = Read access. Write a 1 to clear the bit to 0.
ESPI Status Register
TDRE
R
7
1
NUMBITS[2:0]—Number of Data Bits Per Character to Transfer
This field contains the number of bits to shift for each character transfer. For information
on valid bit positions when the character length is less than 8 bits, see description of
Data Register
000 = 8 bits
001 = 1 bit
010 = 2 bits
011 = 3 bits
100 = 4 bits
101 = 5 bits
110 = 6 bits
111 = 7 bits
SSIO—Slave Select I/O
This bit controls the direction of the SS pin. In single MASTER mode, SSIO is set to 1
unless a separate GPIO pin is being used to provide the SS output function. In the SPI
Slave or multi-Master configuration, SSIO is set to 0.
0 = SS pin configured as an input (SPI Slave and multi-Master modes).
1 = SS pin configured as an output (SPI single Master mode).
SSPO—Slave Select Polarity
This bit controls the polarity of the SS pin.
0 = SS is active Low. (SSV = 1 corresponds to SS = 0).
1 = SS is active High. (SSV = 1 corresponds to SS = 1).
The ESPI Status register
to their Reset state if the ESPI is disabled.
TDRE—Transmit Data Register Empty
0 = Transmit data register is full or ESPI is disabled.
1 = Transmit data register is empty. A write to the ESPI (Transmit) Data register
clears this bit.
TUND
R/W*
6
0
on page 205.
R/W*
COL
5
0
(Table
P R E L I M I N A R Y
114) indicates the current state of the ESPI. All bits revert
R/W*
ABT
4
0
F64H
ROVR
R/W*
3
0
RDRNE
Z8 Encore! XP
Enhanced Serial Peripheral Interface
R
2
0
Product Specification
TFST
R
1
0
®
F1680 Series
SLAS
R
0
1
ESPI
210