z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 211

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 105. ESPI Baud Rate High Byte Register (ESPIBRH)
PS022006-0207
RESET
FIELD
ADDR
BITS
R/W
ESPI Baud Rate High and Low Byte Registers
R/W
7
1
The ESPI Baud Rate High and Low Byte registers (see
to form a 16-bit reload value, BRG[15:0], for the ESPI Baud Rate Generator. The ESPI
baud rate is calculated using the following equation:
Minimum baud rate is obtained by setting BRG[15:0] to
of (2 x 65536 = 131072)
When the ESPI function is disabled, the BRG functions as a basic 16-bit timer with
interrupt on time-out.
Follow the procedure below to configure the BRG as a general purpose timer with
interrupt on timeout:
1. Disable the ESPI by setting
2. Load the appropriate 16-bit count value into the ESPI Baud Rate High and Low Byte
3. Enable the BRG timer function and associated interrupt by setting the BRGCTL bit in
When configured as a general purpose timer, the SPI BRG interrupt interval is calculated
using the following equation:
BRH = ESPI Baud Rate High Byte
Most significant byte, BRG[15:8], of the ESPI Baud Rate Generator’s reload value.
SPI BRG Interrupt Interval (s)
SPI Baud Rate (bps)
registers.
the ESPI Control register to 1.
R/W
6
1
R/W
5
1
=
P R E L I M I N A R Y
System Clock Frequency (Hz)
--------------------------------------------------------------------------- -
ESPIEN[1:0] = 00
R/W
4
1
2 BRG[15:0]
FF_E266H
=
×
BRH
System Clock Period (s) BRG[15:0]
R/W
3
1
Enhanced Serial Peripheral Interface
in the SPI Control register.
Table 105
0000H
R/W
2
1
for a clock divisor value
Product Specification
and
ZNEO
×
Table
R/W
1
1
™
106) combine
Z16F Series
R/W
0
1
197