Z87100 Datasheet, PDF (36/48 Pages) Zilog, Inc. – Wireless Transmitter

Z87100
Wireless Transmitter
EXPANDED REGISTER FILE CONTROL REGISTERS (Continued)
Zilog
TMBAS (C) 06
D7 D6 D5 D4 D3 D2 D1 D0
TIMEOUT_SELECT
0 0 0.25 second
0 1 1.0 second
1 0 1 minute
1 1 1 hour
TIMEOUT_ENABLE
0 Disabled (stop)
1 Enabled (reset and start)
CLOCK_SELECT
0 RC
1 TMBASE
MODULATE_SELECT
0 PN modulated data
1 PN sequence only
Reserved
Note: Register settings are not reset upon Stop-Mode Recovery.
Figure 41. Time Base Generator
Control Register ((C) 06H: Read/Write)
R246 P2M
D7 D6 D5 D4 D3 D2 D1 D0
P2 ₇ - P20 I/O Definition
0 Defines Bit as OUTPUT
1 Defines Bit as INPUT
Note: Register settings are not reset upon Stop-Mode Recovery.
Figure 42. Port 2 Mode Register
(F6H; Write Only)
R248 P01M
D7 D6 D5 D4 D3 D2 D1 D0
X
Must be 0
X
Figure 44. Port 0 and 1 Mode Register
(F8H: Write Only)
R249 IPR
D7 D6 D5 D4 D3 D2 D1 D0
Interrupt Group Priority
000 Reserved
001 C > A > B
010 A > B > C
011 A > C > B
100 B > C > A
101 C > B > A
110 B > A > C
111 Reserved
IRQ1, IRQ4 Priority (Group C)
0 IRQ1 > IRQ4
1 IRQ4 > IRQ1
IRQ0, IRQ2 Priority (Group B)
0 IRQ2 > IRQ0
1 IRQ0 > IRQ2
IRQ3, IRQ5 Priority (Group A)
0 IRQ5 > IRQ3
1 IRQ3 > IRQ5
0
Figure 45. Interrupt Priority Register
(F9H: Write Only)
R247 P3M
D7 D6 D5 D4 D3 D2 D1 D0
0 Port 2 Open-Drain
1 Port 2 Push-Pull
Port 3 Inputs
0 Digital
1 Analog
0 Reserved
Note: Register settings are not reset upon Stop-Mode Recovery.
Figure 43. Port 3 Mode Register
(F7H: Write Only)
R250 IRQ
D7 D6 D5 D4 D3 D2 D1 D0
IRQ0 = XTALB Time Base Generator
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = Software Controlled/PN Modulator
IRQ4 = T0
IRQ5 = T1
Interrupt On Edge
00 P31 ↓ XTALB Time Base ↓
01 P31 ↓ XTALB Time Base ↑
10 P31 ↑ XTALB Time Base ↓
11 P31 ↑↓ XTALB Time Base ↑↓
Figure 46. Interrupt Request Register
(FAH: Read/Write)
3-36
PRELIMINARY
DS96WRL0700